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  • Born 1962
  • Diploma studies in Chemistry, 1982-1988, University of Giessen (Germany)
  • PhD Thesis, 1988-1991, University of Hannover (Germany)
  • Postdoc, 1991-93, University of Bern (Switzerland)
  • Senior scientist, 1993-2005, University of Bern
  • Lecturer since 1999, Habilitation 2014, University of Bern
  • Group leader in solid state chemistry since 2005, University of Bern

 

 

  • Chemistry and crystal growth of rare-earth and transition metal halides
  • Upconversion phosphors and scintillator materials
  • Magnetic structures and excitations 

Journal Article

Villanueva Delgado, Pedro; Biner, Daniel; Krämer, Karl (2017). Judd-Ofelt analysis of β-NaGdF4: Yb3+, Tm3+ and β-NaGdF4:Er3+ single crystals. Journal of luminescence, 189, pp. 84-90. North-Holland 10.1016/j.jlumin.2016.04.023

Radu, Ioana; Kravtsov, Victor Ch.; Ostrovsky, Serghei M.; Reu, Oleg S.; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia; Klokishner, Sophia I.; Baca, Svetlana G. (2017). Tetranuclear {Co II 2 Co III 2 }, Octanuclear {Co II 4 Co III 4 }, and Hexanuclear {Co III 3 Dy III 3 } Pivalate Clusters: Synthesis, Magnetic Characterization, and Theoretical Modeling. Inorganic chemistry, 56(5), pp. 2662-2676. American Chemical Society 10.1021/acs.inorgchem.6b02827

Klein, Y. Maximilian; Lanzilotto, Angelo; Prescimone, Alessandro; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia; Constable, Edwin C.; Housecroft, Catherine E. (2017). Coordination behaviour of 1-(3,2':6',3''-terpyridin-4'-yl)ferrocene: structure and magnetic and electrochemical properties of a tetracopper dimetallomacrocycle. Polyhedron, 129, pp. 71-76. Elsevier 10.1016/j.poly.2017.03.030

Lysenko, Andrey B.; Senchyk, Ganna A.; Lukashuk, Liliana V.; Domasevitch, Konstantin V.; Handke, Marcel; Lincke, Jörg; Krautscheid, Harald; Rusanov, Eduard B.; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia (2016). Composition Space Analysis in the Development of Copper Molybdate Hybrids Decorated by a Bifunctional Pyrazolyl/1,2,4-Triazole Ligand. Inorganic chemistry, 55(1), pp. 239-250. American Chemical Society 10.1021/acs.inorgchem.5b02188

Botezat, Olga; Filippova, Irina G.; Hauser, Jürg; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia; Baca, Svetlana G. (2016). Synthesis, crystal structure, and properties of a μ 3 -oxo-trichromium(III) propionate cluster with pyrazole. Journal of Coordination Chemistry, 69(1), pp. 72-80. Taylor & Francis 10.1080/00958972.2015.1119272

Chisca, Diana; Croitor, Lilia; Coropceanu, Eduard B.; Petuhov, Oleg; Baca, Svetlana G.; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Rivera-Jacquez, Hector J.; Masunov, Artëm E.; Fonari, Marina S. (2016). From pink to blue and back to pink again: changing the Co( ii ) ligation in a two-dimensional coordination network upon desolvation. CrystEngComm, 18(3), pp. 384-389. Royal Society of Chemistry 10.1039/c5ce01581b

Radu, Ioana; Kravtsov, Victor Ch.; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia; Reu, Oleg S.; Ostrovsky, Serghei M.; Klokishner, Sophia I.; Baca, Svetlana G. (2016). Synthesis, Characterization, and Modeling of Magnetic Properties of a Hexanuclear Amino Alcohol-Supported {Co II 2 Co III 2 Dy III 2 } Pivalate Cluster. Journal of physical chemistry. C, 120(13), pp. 7435-7443. American Chemical Society 10.1021/acs.jpcc.6b01378

Villanueva Delgado, Pedro; Krämer, Karl; Valiente, Rafael; de Jong, Mathijs; Meijerink, Andries (2016). Modeling blue to UV upconversion in β-NaYF 4 :Tm 3+. Physical Chemistry Chemical Physics, 18(39), pp. 27396-27404. Royal Society of Chemistry 10.1039/C6CP04347J

Chisca, Diana; Croitor, Lilia; Coropceanu, Eduard B.; Petuhov, Oleg; Volodina, Galina F.; Baca, Svetlana G.; Krämer, Karl; Hauser, Jürg; Decurtins, Silvio; Liu, Shi-Xia; Fonari, Marina S. (2016). Six Flexible and Rigid Co(II) Coordination Networks with Dicarboxylate and Nicotinamide-Like Ligands: Impact of Noncovalent Interactions in Retention of Dimethylformamide Solvent. Crystal growth & design, 16(12), pp. 7011-7024. American Chemical Society 10.1021/acs.cgd.6b01226

de Jong, Mathijs; Biner, Daniel; Krämer, Karl; Barandiarán, Zoila; Seijo, Luis; Meijerink, Andries (2016). New Insights in 4f 12 5d 1 Excited States of Tm 2+ through Excited State Excitation Spectroscopy. Journal of physical chemistry letters, 7(14), pp. 2730-2734. American Chemical Society 10.1021/acs.jpclett.6b00924

Wyss, Pradeep P; Lamichhane, Surya; Rauber, Martin; Thomann, Ralf; Krämer, Karl; Shastri, V Prasad (2016). Tripod USPIONs with high aspect ratio show enhanced T2 relaxation and cytocompatibility. Nanomedicine, 11(9), pp. 1017-1030. Future Medicine 10.2217/nnm.16.8

Wehinger, Björn; Fiolka, Christoph; Graf, David; Coniglio, William A.; Grockowiak, Audrey; Chen, Jyong-Hao; Gukelberger, Jan; Skoulatos, Markus; Krämer, Karl; Tozer, Stan; Mudry, Christopher; Rüegg, Christian (2016). Giant pressure dependence and dimensional crossover in a metal-organic Heisenberg antiferromagnet (Submitted). NN

Ward, Simon; Bouillot, P.; Kollath, C.; Giamarchi, T.; Schmidt, K.P.; Normand, Bruce; Krämer, Karl; Biner, Daniel; Bewley, R.; Guidi, T.; Boehm, Martin; McMorrow, Des; Rüegg, Christian (2016). Bound states and field-polarized Haldane modes in a quantum spin ladder (Submitted). NN

Braccini, Saverio; Krämer, Karl; Chapenoire, Stephane (2016). X-Ray and Mössbauer Study of Magnetic Black and from Mayotte Island. World journal of nuclear science and technology, 6(04), pp. 191-198. Scientific Research Publishing 10.4236/wjnst.2016.64020

Babkevich, Peter; Nikseresht, N.; Kovacevic, I.; Piatek, Julian; Dalla Piazza, B.; Kraemer, Conradin; Krämer, Karl; Prokes, K.; Matas, S.; Jensen, Jens; Ronnow, Henrik M. (2016). Phase diagram of diluted Ising ferromagnet LiHoxY1−xF4. Physical Review B, 94(17), p. 174443. American Institute of Physics 10.1103/PhysRevB.94.174443

Dunaev, A. M.; Motalov, V. B.; Kudin, L. S.; Butman, M. F.; Krämer, Karl (2016). Study of Molecular and Ionic Vapor Composition over CeI3 by Knudsen Effusion Mass Spectrometry. Journal of Spectroscopy, 2016, pp. 1-9. Hindawi Publishing Corporation 10.1155/2016/2368131

Alemany, Pere; Canadell, Enric; Geng, Yan; Hauser, Jürg; Macchi, Piero; Krämer, Karl; Decurtins, Silvio; Liu, Shi-Xia (2015). Exploring the Electronic Structure of an Organic Semiconductor Based on a Compactly Fused Electron Donor-Acceptor Molecule. ChemPhysChem, 16(7), pp. 1361-1365. Wiley-VCH 10.1002/cphc.201500090

Croitor, Lilia; Coropceanu, Eduard B.; Petuhov, Oleg; Krämer, Karl; Baca, Svetlana G.; Liu, Shi-Xia; Decurtins, Silvio; Fonari, Marina S. (2015). A one-dimensional coordination polymer based on Cu 3 -oximato metallacrowns bridged by benzene-1,4-dicarboxylato ligands: structure and magnetic properties. Dalton transactions, 44(17), pp. 7896-7902. Royal Society of Chemistry 10.1039/C5DT00533G

Amacher, Anneliese; Puigmari-Luis, josep; Geng, Yan; Lebedev, Victor; Laukhin, Vladimir; Krämer, Karl; Hauser, Jürg; Amabilino, David B; Decurtins, Silvio; Liu, Shi-Xia (2015). Coordination-directed self-assembly of a simple benzothiadiazole-fused tetrathiafulvalene to low-bandgap metallogels. Chemical communications, 51(81), pp. 15063-15066. Royal Society of Chemistry 10.1039/C5CC06819C

Villanueva Delgado, Pedro; Krämer, Karl; Valiente, Rafael (2015). Simulating Energy Transfer and Upconversion in β-NaYF 4 : Yb 3+ , Tm 3+. Journal of physical chemistry. C, 119(41), pp. 23648-23657. American Chemical Society 10.1021/acs.jpcc.5b06770

Babkevich, P.; Finco, A.; Jeong, M.; Dalla Piazza, B.; Kovacevic, I.; Klughertz, G.; Krämer, Karl; Kraemer, C.; Adroja, D. T.; Goremychkin, E.; Unruh, T.; Strässle, T.; Di Lieto, A.; Jensen, J.; Rønnow, H. M. (2015). Neutron spectroscopic study of crystal-field excitations and the effect of the crystal field on dipolar magnetism in Li R F 4 ( R = Gd , Ho, Er, Tm, and Yb). Physical review. B - condensed matter and materials physics, 92(14), p. 144422. American Physical Society 10.1103/PhysRevB.92.144422

Alekhin, Mikhail S.; Awater, Roy H.P.; Biner, Daniel; Krämer, Karl; de Haas, Johan T.M.; Dorenbos, Pieter (2015). Luminescence and spectroscopic properties of Sm2+ and Er3+ doped SrI2. Journal of luminescence, 167, pp. 347-351. North-Holland 10.1016/j.jlumin.2015.07.002

Furrer, A.; Podlesnyak, A.; Krämer, Karl (2015). Extraction of exchange parameters in transition-metal perovskites. Physical review. B - condensed matter and materials physics, 92(10) American Physical Society 10.1103/PhysRevB.92.104415

Arnaoutakis, Georgios E.; Marques-Hueso, Jose; Ivaturi, Aruna; Fischer, Stefan; Goldschmidt, Jan C; Krämer, Karl; Richards, Bryce S. (2015). Enhanced energy conversion of up-conversion solar cells by the integration of compound parabolic concentrating optics. Solar energy materials and solar cells, 140, pp. 217-223. North-Holland 10.1016/j.solmat.2015.04.020

Awater, Roy H. P.; Krämer, Karl; Dorenbos, Pieter (2015). Effects of Na+, Mg2+, Ca2+, Sr2 + and Ba2 + Doping on the Scintillation Properties of CeBr_3. IEEE transactions on nuclear science, 62(5), pp. 2343-2348. Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/tns.2015.2463736

ten Kate, Otmar M.; Krämer, Karl; van der Kolk, Erik (2015). Efficient luminescent solar concentrators based on self-absorption free, Tm2+ doped halides. Solar energy materials and solar cells, 140, pp. 115-120. North-Holland 10.1016/j.solmat.2015.04.002

Sergeev, D.N.; Motalov, V.B.; Butman, M.F.; Kudin, L.S.; Krämer, Karl (2015). Vapor phase composition as an indicator of thermal stability of the Sm, Eu, and Yb chlorides. Thermochimica Acta, 622, pp. 51-54. Elsevier 10.1016/j.tca.2015.06.034

Dunaev, A.M.; Kudin, L.S.; Motalov, V.B.; Ivanov, D.A.; Butman, M.F.; Krämer, Karl (2015). Mass spectrometric study of molecular and ionic sublimation of lanthanum triiodide. Thermochimica Acta, 622, pp. 82-87. Elsevier 10.1016/j.tca.2015.09.008

Krämer, Karl; Keller, Lukas (2014). Phase Transitions of YbBr2. Zeitschrift für anorganische und allgemeine Chemie, 640(15), pp. 3166-3171. Wiley-VCH 10.1002/zaac.201400165

Alekhin, Mikhail S.; Weber, Sandra; Krämer, Karl; Dorenbos, Pieter (2014). Optical properties and defect structure of Sr2+ co-doped LaBr3:5%Ce scintillation crystals. Journal of luminescence, 145, pp. 518-524. Amsterdam: North-Holland 10.1016/j.jlumin.2013.08.019

Sergeev, D.N.; Dunaev, A.M.; Butman, M.F.; Ivanov, D.A.; Kudin, L.S.; Krämer, Karl (2014). Energy characteristics of molecules and ions of ytterbium iodides. International journal of mass spectrometry, 374, pp. 1-3. Elsevier 10.1016/j.ijms.2014.09.014

Lanza, Arianna; Fiolka, Christoph; Fisch, Martin; Casati, N.; Skoulatos, M.; Rüegg, C.; Krämer, Karl; Macchi, Piero (2014). New magnetic frameworks of [(CuF 2 (H 2 O) 2 ) x (pyz)]. Chemical communications, 50(93), pp. 14504-14507. Royal Society of Chemistry 10.1039/C4CC06696K

Senchyk, Ganna A.; Lysenko, Andrey B.; Babaryk, Artem A.; Rusanov, Eduard B.; Krautscheid, Harald; Neves, Patrícia; Valente, Anabela A.; Gonçalves, Isabel S.; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Domasevitch, Konstantin V. (2014). Triazolyl–Based Copper–Molybdate Hybrids: From Composition Space Diagram to Magnetism and Catalytic Performance. Inorganic chemistry, 53(19), pp. 10112-10121. American Chemical Society 10.1021/ic5009736

Dreiser, Jan; Westerström, Rasmus; Zhang, Yang; Popov, Alexey A.; Dunsch, Lothar; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Greber, Thomas (2014). The Metallofullerene Field-Induced Single-Ion Magnet HoSc 2 N@C 80. Chemistry - a European journal, 20(42), pp. 13536-13540. Wiley-VCH 10.1002/chem.201403042

Arnaoutakis, Georgios E.; Marques-Hueso, Jose; Ivaturi, Aruna; Krämer, Karl; Fischer, Stefan; Goldschmidt, Jan Christoph; Richards, Bryce S. (2014). Enhanced up-conversion for photovoltaics via concentrating integrated optics. Optics express, 22(S2), A452-A464. Optical Society of America 10.1364/OE.22.00A452

Botezat, Olga; van Leusen, Jan; Kravtsov, Victor Ch.; Filippova, Irina G.; Hauser, Jürg; Speldrich, Manfred; Hermann, Raphaël P.; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Kögerler, Paul; Baca, Svetlana G. (2014). Interpenetrated (8,3)-c and (10,3)-b Metal–Organic Frameworks Based on {Fe III 3 } and {Fe III 2 Co II } Pivalate Spin Clusters. Crystal growth & design, 14(9), pp. 4721-4728. American Chemical Society 10.1021/cg5008236

Čižmár, E.; Ozerov, M.; Krämer, Karl; Rüegg, Ch.; Zvyagin, S.A. (2014). Observation of Anisotropic Exchange in a Spin Ladder by ESR. Acta Physica Polonica A, 126(1), pp. 238-239. Polish Academy of Sciences 10.12693/APhysPolA.126.238

Rüdiger, Marc; Fischer, Stefan; Frank, Judith; Ivaturi, Aruna; Richards, Bryce S.; Krämer, Karl; Hermle, Martin; Goldschmidt, Jan Christoph (2014). Bifacial n-type silicon solar cells for upconversion applications. Solar energy materials and solar cells, 128, pp. 57-68. North-Holland 10.1016/j.solmat.2014.05.014

MacDougall, Sean K.W.; Ivaturi, Aruna; Marques-Hueso, Jose; Krämer, Karl; Richards, Bryce S. (2014). Broadband photoluminescent quantum yield optimisation of Er3+-doped β-NaYF4 for upconversion in silicon solar cells. Solar energy materials and solar cells, 128, pp. 18-26. North-Holland 10.1016/j.solmat.2014.05.004

Ryll, H.; Kiefer, K.; Rüegg, Ch.; Ward, S.; Krämer, Karl; Biner, Daniel; Bouillot, P.; Coira, E.; Giamarchi, T.; Kollath, C. (2014). Magnetic entropy landscape and Grüneisen parameter of a quantum spin ladder. Physical review. B - condensed matter and materials physics, 89(14) American Physical Society 10.1103/PhysRevB.89.144416

Furrer, A.; Podlesnyak, A.; Krämer, Karl; Embs, J. P.; Pomjakushin, V.; Strässle, Th. (2014). Propagation of defects in doped magnetic materials of different dimensionality. Physical review. B - condensed matter and materials physics, 89(14) American Physical Society 10.1103/PhysRevB.89.144402

Fischer, Stefan; Martín-Rodríguez, Rosa; Fröhlich, Benjamin; Krämer, Karl; Meijerink, Andries; Goldschmidt, Jan Christoph (2014). Upconversion quantum yield of Er3+-doped β-NaYF4 and Gd2O2S: The effects of host lattice, Er3+ doping, and excitation spectrum bandwidth. Journal of luminescence, 153, pp. 281-287. North-Holland 10.1016/j.jlumin.2014.03.047

Degtyarenko, Anna S.; Handke, Marcel; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Rusanov, Eduard B.; Thompson, Laurence K.; Krautscheid, Harald; Domasevitch, Konstantin V. (2014). Mixed-ligand hydroxocopper(ii)/pyridazine clusters embedded into 3D framework lattices. Dalton transactions, 43(22), pp. 8530-8542. Royal Society of Chemistry 10.1039/c4dt00174e

Westerström, Rasmus; Dreiser, Jan; Piamonteze, Cinthia; Muntwiler, Matthias; Weyeneth, Stephen; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Popov, Alexey; Yang, Shangfeng; Dunsch, Lothar; Greber, Thomas (2014). Tunneling, remanence, and frustration in dysprosium-based endohedral single-molecule magnets. Physical review. B - condensed matter and materials physics, 89(6) American Physical Society 10.1103/PhysRevB.89.060406

Geng, Yan; Fiolka, Christoph; Krämer, Karl; Hauser, Jürg; Laukhin, Vladimir; Decurtins, Silvio; Liu, Shi-Xia (2014). A quinoxaline-fused tetrathiafulvalene derivative and its semiconducting charge-transfer salt: synthesis, crystal structures and physical properties. New journal of chemistry, 38(5), pp. 2052-2057. Royal Society of Chemistry 10.1039/c3nj01200j

Merchant, P.; Normand, B.; Krämer, Karl; Boehm, M.; McMorrow, D. F.; Rüegg, Ch. (2014). Quantum and classical criticality in a dimerized quantum antiferromagnet. Nature physics, 10(5), pp. 373-379. Nature Publishing Group 10.1038/nphys2902

Gomila, Antoine; Duval, Sylvain; Besnard, Céline; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Williams, Alan F. (2014). Tetracarboxylate Ligands as New Chelates Supporting Copper(II) Paddlewheel-Like Structures. Inorganic chemistry, 53(5), pp. 2683-2691. American Chemical Society 10.1021/ic403077q

Stepuk, Alexander; Casola, Gioele; Schumacher, Christoph M.; Krämer, Karl; Stark, Wendelin J. (2014). Purification of NaYF 4 -Based Upconversion Phosphors. Chemistry of materials, 26(6), pp. 2015-2020. American Chemical Society 10.1021/cm403459v

Fischer, S.; Fröhlich, B.; Steinkemper, H.; Krämer, Karl; Goldschmidt, J.C. (2014). Absolute upconversion quantum yield of β-NaYF4 doped with Er3+ and external quantum efficiency of upconverter solar cell devices under broad-band excitation considering spectral mismatch corrections. Solar energy materials and solar cells, 122, pp. 197-207. North-Holland 10.1016/j.solmat.2013.12.001

Quarati, F.G.A.; Alekhin, M.S.; Krämer, Karl; Dorenbos, P. (2014). Co-doping of CeBr3 scintillator detectors for energy resolution enhancement. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 735, pp. 655-658. North-Holland 10.1016/j.nima.2013.10.004

Pascu, Gabriel; Deville, Claire; Clifford, Sarah E.; Guenée, Laure; Besnard, Céline; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Tuna, Floriana; McInnes, Eric J. L.; Winpenny, Richard E. P.; Williams, Alan F. (2014). The coordination chemistry of tartronic acid with copper: magnetic studies of a quasi-equilateral tricopper triangle. Dalton transactions, 43(2), pp. 656-662. Royal Society of Chemistry 10.1039/c3dt51838h

Alekhin, Mikhail S.; Biner, Daniel; Krämer, Karl; Dorenbos, Pieter (2014). Optical and scintillation properties of CsBa2I5:Eu2+. Journal of luminescence, 145, pp. 723-728. North-Holland 10.1016/j.jlumin.2013.08.058

Fischer, Stefan; Ivaturi, Aruna; Frohlich, Benjamin; Rudiger, Marc; Richter, Armin; Krämer, Karl; Richards, Bryce S.; Goldschmidt, Jan Christoph (2014). Upconverter Silicon Solar Cell Devices for Efficient Utilization of Sub-Band-Gap Photons Under Concentrated Solar Radiation. IEEE journal of photovoltaics, 4(1), pp. 183-189. Institute of Electrical and Electronics Engineers IEEE 10.1109/JPHOTOV.2013.2282744

Alekhin, Mikhail S.; Biner, Daniel; Krämer, Karl; Dorenbos, Pieter (2014). Optical and scintillation properties of SrI2:Yb2+. Optical materials, 37, pp. 382-386. North-Holland 10.1016/j.optmat.2014.06.030

Furrer, A.; Podlesnyak, A.; Krämer, Karl; Strässle, Th. (2014). Defect propagation in one-, two-, and three-dimensional compounds doped by magnetic atoms. Physical review. B - condensed matter and materials physics, 90(14) American Physical Society 10.1103/PhysRevB.90.144434

Sergeev, Dmitry N.; Motalov, Vladimir B.; Butman, Mikhail F.; Kiselev, Artem E.; Kudin, Lev S.; Krämer, Karl (2014). Atomization Energies of LnX Molecules (Ln = Sm, Eu, and Yb; X = Cl, Br, and I). Journal of chemical & engineering data, 59(12), pp. 4010-4014. American Chemical Society 10.1021/je500550s

Fischer, Stefan; Fröhlich, Benjamin; Krämer, Karl; Goldschmidt, Jan Christoph (2014). Relation between Excitation Power Density and Er3+ Doping Yielding the Highest Absolute Upconversion Quantum Yield. Journal of physical chemistry. C, 118(51), pp. 30106-30114. American Chemical Society 10.1021/jp510209x

Piatek, J. O.; Kovacevic, I.; Babkevich, P.; Dalla Piazza, B.; Neithardt, S.; Gavilano, J.; Krämer, Karl; Rønnow, H. M. (2014). Nonequilibrium hysteresis and spin relaxation in the mixed-anisotropy dipolar-coupled spin-glass LiHo0.5Er0.5F4. Physical review. B - condensed matter and materials physics, 90(17), p. 174427. American Physical Society 10.1103/PhysRevB.90.174427

Sergeev, Dmitry N.; Butman, Mikhail F.; Motalov, Vladimir B.; Kudin, Lev S.; Krämer, Karl (2013). Extrapolated difference technique for the determination of atomization energies of Sm, Eu, and Yb bromides. International journal of mass spectrometry, 348, pp. 23-28. Elsevier 10.1016/j.ijms.2013.03.004

Dulcevscaia, Galina; Liu, Shi-Xia; Hauser, Jürg; Krämer, Karl; Frei, Gabriela Claudia; Möller, Andreas; Decurtins, Silvio (2013). A Benzaldehyde Derivative as a Chelating Ligand: Helical Manganese(II) Coordination Polymers Assembling into a Porous Solid. Crystal growth & design, 13(9), pp. 4138-4144. Washington, D.C.: American Chemical Society 10.1021/cg400972k

Sharga, Olena V.; Lysenko, Andrey B.; Handke, Marcel; Krautscheid, Harald; Rusanov, Eduard B.; Chernega, Alexander N.; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Bridgeman, Adam; Domasevitch, Konstantin V. (2013). Unprecedented Trapping of Difluorooctamolybdate Anions within an α-Polonium Type Coordination Network. Inorganic chemistry, 52(15), pp. 8784-8794. Washington, D.C.: American Chemical Society 10.1021/ic400954x

Piatek, J. O.; Dalla Piazza, B.; Nikseresht, N.; Tsyrulin, N.; Živković, I.; Krämer, Karl; Laver, M.; Prokes, K.; Mataš, S.; Christensen, N. B.; Rønnow, H. M. (2013). Phase diagram with an enhanced spin-glass region of the mixed Ising–XY magnet LiHo{x}Er{1-x}F{4}. Physical review. B - condensed matter and materials physics, 88(1), pp. 1-11. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.88.014408

Ivaturi, Aruna; MacDougall, Sean K. W.; Martín-Rodríguez, Rosa; Quintanilla, Marta; Marques-Hueso, Jose; Krämer, Karl; Meijerink, Andries; Richards, Bryce S. (2013). Optimizing infrared to near infrared upconversion quantum yield of β-NaYF4:Er3+ in fluoropolymer matrix for photovoltaic devices. Journal of applied physics, 114(1), 013505. Melville, N.Y.: American Institute of Physics 10.1063/1.4812578

Braccini, Saverio; Pellegrinelli, Olivier; Krämer, Karl (2013). Mössbauer, X-ray and Magnetic Studies of Black Sand from the Italian Mediterranean Sea. World journal of nuclear science and technology, 03(03), pp. 91-95. Irvine, Calif.: Scientific Research Publishing 10.4236/wjnst.2013.33016

Alekhin, Mikhail S.; Krämer, Karl W.; Dorenbos, Pieter (2013). Self-absorption in SrI2:2%Eu2+ between 78K and 600K. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 714, pp. 13-16. Amsterdam: North-Holland 10.1016/j.nima.2013.02.025

Sergeev, D. N.; Butman, M. F.; Motalov, V. B.; Kudin, L. S.; Krämer, Karl (2013). Knudsen effusion mass spectrometric determination of the complex vapor composition of samarium, europium, and ytterbium bromides. Rapid communications in mass spectrometry, 27(15), pp. 1715-1722. Chichester: Wiley 10.1002/rcm.6617

Alekhin, Mikhail S.; Biner, Daniel; Krämer, Karl; Dorenbos, Pieter (2013). Improvement of LaBr3:5%Ce scintillation properties by Li+, Na+, Mg2+, Ca2+, Sr2+, and Ba2+ co-doping. Journal of applied physics, 113(22), 224904-1-224904-7. Melville, N.Y.: American Institute of Physics 10.1063/1.4810848

Alekhin, M. S.; de Haas, J. T. M.; Khodyuk, I. V.; Krämer, Karl W.; Menge, P. R.; Ouspenski, V.; Dorenbos, P. (2013). Improvement of γ-ray energy resolution of LaBr3:Ce3+ scintillation detectors by Sr2+ and Ca2+ co-doping. Applied physics letters, 102(16), pp. 161915-1. Melville, N.Y.: American Institute of Physics 10.1063/1.4803440

Martín-Rodríguez, Rosa; Fischer, Stefan; Ivaturi, Aruna; Froehlich, Benjamin; Krämer, Karl; Goldschmidt, Jan C.; Richards, Bryce S.; Meijerink, Andries (2013). Highly Efficient IR to NIR Upconversion in Gd2O2S: Er3+ for Photovoltaic Applications. Chemistry of materials, 25(9), pp. 1912-1921. Washington, D.C.: American Chemical Society 10.1021/cm4005745

Hehlen, Markus P.; Brik, Mikhail G.; Krämer, Karl W. (2013). 50th anniversary of the Judd–Ofelt theory: An experimentalist's view of the formalism and its application. Journal of luminescence, 136, pp. 221-239. Amsterdam: North-Holland 10.1016/j.jlumin.2012.10.035

Senchyk, Ganna A.; Lysenko, Andrey B.; Krautscheid, Harald; Rusanov, Eduard B.; Chernega, Alexander N.; Krämer, Karl; Liu, Shi-Xia; Decurtins, Silvio; Domasevitch, Konstantin V. (2013). Functionalized Adamantane Tectons Used in the Design of Mixed-Ligand Copper(II) 1,2,4-Triazolyl/Carboxylate Metal–Organic Frameworks. Inorganic chemistry, 52(2), pp. 863-872. Washington, D.C.: American Chemical Society 10.1021/ic3020157

Stepuk, Alexander; Krämer, Karl; Stark, Wendelin J. (2013). Flame Synthesis of Complex Fluoride-Based Nanoparticles as Upconversion Phosphors. KONA: Powder and Particle Journal(30), pp. 267-275. Hosokawa Powder Technology Foundation

Ward, Simon; Bouillot, Pierre; Ryll, Hanjo; Kiefer, Klaus; Krämer, Karl; Rüegg, Christian; Kollath, Corinna; Giamarchi, Thierry (2013). Spin ladders and quantum simulators for Tomonaga–Luttinger liquids. Journal of Physics: Condensed Matter, 25(1), 014004. Bristol: Institute of Physics Publishing IOP 10.1088/0953-8984/25/1/014004

Hai, N.T.M.; Krämer, K.W.; Fluegel, A.; Arnold, M.; Mayer, D; Broekmann, P. (2012). Beyond interfacial anion/cation pairing: The role of Cu(I) coordination chemistry in additive-controlled copper plating. Electrochimica acta, 83, pp. 367-375. Kidlington, UK: Elsevier Science 10.1016/j.electacta.2012.07.036

Hai, N.T.M.; Oderrnatt, J.; Grimaudo, V.; Krämer, K. W.; Fluegel, A.; Arnold, M.; Mayer, D.; Broekmann, P. (2012). Potential Oscillations in Galvanostatic Cu Electrodeposition: Antagonistic and Synergistic Effects among SPS, Chloride, and Suppressor Additives. Journal of physical chemistry. C, 116(12), pp. 6913-6924. Washington, D.C.: American Chemical Society 10.1021/jp2096086

Keene, Tony D.; D'Alessandro, Deanna M.; Krämer, Karl W.; Price, Jason R.; Price, David J.; Decurtins, Silvio; Kepert, Cameron J. (2012). [V16O38(CN)](9-): A Soluble Mixed-Valence Redox-Active Building Block with Strong Antiferromagnetic Coupling. Inorganic chemistry, 51(17), pp. 9192-9199. Washington, D.C.: American Chemical Society 10.1021/ic3001834

Goldschmidt, J.C.; Fischer, S.; Steinkemper, H.; Hallermann, F.; von Plessen, G.; Krämer, K.W.; Biner, D.; Hermle, M. (2012). Increasing Upconversion by Plasmon Resonance in Metal Nanoparticles - A Combined Simulation Analysis. IEEE journal of photovoltaics, 2(2), pp. 134-140. New York, N.Y.: Institute of Electrical and Electronics Engineers IEEE 10.1109/JPHOTOV.2011.2182179

Butman, M.F.; Sergeev, D.N.; Motalov, V.B.; Kudin, L.S.; Krämer, K.W. (2012). Formation energies of molecules and anions of europium bromides. Russian journal of physical chemistry. A, 86(4), pp. 548-552. Moscow: MAIK Nauka/Interperiodica 10.1134/S003602441204005X

Fischer, Stefan; Hallermann, Florian; Eichelkraut, Toni; von Plessen, Gero; Krämer, Karl; Biner, Daniel; Steinkemper, Heiko; Hermle, Martin; Goldschmidt, Jan C. (2012). Plasmon enhanced upconversion luminescence near gold nanoparticles-simulation and analysis of the interactions. Optics express, 20(1), pp. 271-282. Washington, D.C.: Optical Society of America 10.1364/OE.20.000271

Kraemer, Conradin; Nikseresht, Neda; Piatek, Julian O.; Tsyrulin, Nikolay; Dalla Piazza, Bastien; Kiefer, Klaus; Klemke, Bastian; Rosenbaum, Thomas F.; Aeppli, Gabriel; Gannarelli, Ché; Prokes, Karel; Podlesnyak, Andrey; Strässle, Thierry; Keller, Lukas; Zaharko, Oksana; Krämer, K. W.; Rønnow, Henrik M. (2012). Dipolar Antiferromagnetism and Quantum Criticality in LiErF4. Science, 336(6087), pp. 1416-1419. Washington, D.C.: American Association for the Advancement of Science 10.1126/science.1221878

Kudin, Lev S.; Butman, Mikhail F.; Sergeev, Dmitry N.; Motalov, Vladimir B.; Krämer, Karl W. (2012). Determination of the Work Function for Europium Dibromide by Knudsen Effusion Mass Spectrometry. Journal of chemical & engineering data, 57(2), pp. 436-438. Washington, D.C.: American Chemical Society 10.1021/je201029b

MacDougall, Sean K. W.; Aruna, Ivaturi; Marques-Hueso, Jose; Krämer, Karl W.; Richards, Bryce S. (2012). Ultra-high photoluminescent quantum yield of beta-NaYF4: 10% Er3+ via broadband excitation of upconversion for photovoltaic devices. Optics express, 51(15), pp. 8385-8393. Washington, D.C.: Optical Society of America

Stepuk, Alexander; Mohn, Dirk; Grass, Robert N.; Zehnder, Matthias; Krämer, Karl W.; Pellé, Fabienne; Ferrier, Alban; Stark, Wendelin J. (2012). Use of NIR light and upconversion phosphors in light-curable polymers. Dental materials, 28(3), pp. 304-311. Amsterdam: Elsevier 10.1016/j.dental.2011.11.018

Komm, Theresa; Biner, Daniel; Neels, Antonia; Krämer, Karl W. (2012). (C5H12N)Cu2Br3: A Piperidinium Copper(I) Bromide with [Cu2Br3]− Ladders. Crystals, 2(4), pp. 1434-1440. Basel: Molecular Diversity Preservation International MDPI 10.3390/cryst2041434

Furrer, A.; Juranyi, F.; Krämer, K. W.; Schneider, M.; Strässle, Th. (2011). Single-ion versus two-ion anisotropy in magnetic compounds: A neutron scattering study. Physical review. B - condensed matter and materials physics, 83(2, 024404), pp. 1-8. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.83.024404

Goldschmidt, J.C.; Fischer, S.; Löper, P.; Krämer, K.W.; Biner, D.; Hermle, M.; Glunz, S.W. (2011). Experimental analysis of upconversion with both coherent monochromatic irradiation and broad spectrum illumination. Solar energy materials and solar cells, 95(7), pp. 1960-1963. Amsterdam: North-Holland 10.1016/j.solmat.2011.01.019

Butman, M.F.; Motalov, V.B.; Sergeev, D.N.; Kudin, L.S.; Krämer, K.W. (2011). Composition of saturated vapor over Ytterbium bromides. Russian journal of physical chemistry. A, 85(5), pp. 751-759. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024411050062

Kudin, L.S.; Motalov, V.B.; Butman, M.F.; Nakonechnyi, S.N.; Krämer, K.W. (2011). Mass-spectrometric study of molecular and ionic sublimation of gadolinium and terbium tribromides in Knudsen and Langmuir modes. Russian journal of general chemistry, 81(1), pp. 33-40. New York, N.Y.: MAIK Nauka/Interperiodica 10.1134/S1070363211010063

Butman, M.F.; Sergeev, D.N.; Motalov, V.B.; Kudin, L.S.; Kryuchkov, A.S.; Krämer, K.W. (2011). Formation enthalpies of molecules and negative ions of ytterbium bromides. Russian journal of physical chemistry. A, 85(6), pp. 922-925. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024411060124

Keene, Tony D.; Komm, Theresa; Hauser, Jürg; Krämer, Karl W. (2011). Two-dimensional coordination compounds based on Fe(II) and Co(III) hexacyanometallates with Cu(II)(dien) groups: Structures and magnetic properties. Inorganica chimica acta, 373(1), pp. 100-106. Lausanne: Elsevier Sequoia 10.1016/j.ica.2011.03.067

Poole, A.; Roessli, B.; Zaharko, O.; Krämer, K.W. (2011). The magnetic structure of multiferroic BaMnF4. Journal of Physics: Condensed Matter, 23(26), pp. 1-5. Bristol: Institute of Physics Publishing IOP 10.1088/0953-8984/23/26/266004

Mertens, Stijn; Gara, M.; Sologubenko, A.S.; Mayer, J.; Szidat, S.; Krämer, Karl W.; Jacob, T.; Schiffrin, D.J.; Wandlowski, Thomas (2011). Au@Hg nanoalloy formation through direct amalgamation: Structural, spectroscopic, and computational evidence for slow nanoscale diffusion. Advanced functional materials, 21(17), pp. 3259-3267. Weinheim: Wiley-VCH 10.1002/adfm.201100409

Renero-Lecuna, C.; Martin-Rodriguez, R.; Valiente, R.; Gonzalez, J.; Rodriguez, F.; Krämer, K.W.; Güdel, H.U. (2011). Origin of the high upconversion green luminescence efficiency in -NaYF4:2% Er3+,20% Yb3+. Chemistry of materials, 23(15), pp. 3442-3448. Washington, D.C.: American Chemical Society 10.1021/cm2004227

Alekhin, M.S.; de Haas, J.T.M.; Krämer, K.W.; Dorenbos, P. (2011). Scintillation properties of and self absorption in SrI2 : Eu2+. IEEE transactions on nuclear science, 58(5), pp. 2519-2527. New York, N.Y.: Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2011.2163642

Furrer, A.; Strässle, Th.; Embs, J.P.; Juranyi, F.; Pomjakushin, V.; Schneider, M.; Krämer, K.W. (2011). Direct observation of local Mn-Mn distances in the paramagnetic compound CsMnxMg1-xBr3. Physical review letters, 107(11), pp. 1-5. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.107.115502

Krämer, Karl; Biner, Daniel; Keller, Lukas (2011). Phase Transitions of YbBr2. Swiss neutron news(39), pp. 4-10. Villigen (CH): Schweizerische Gesellschaft für Neutronenstreuung, c/o Paul-Scherrer-Institut

van der Kolk, E.; Ten Kate, O. M.; Wiegman, J. W.; Biner, D.; Kraemer, K. W. (2011). Enhanced (1)G(4) emission in NaLaF4: Pr3+, Yb3+ and charge transfer in NaLaF4: Ce3+, Yb3+ studied by fourier transform luminescence spectroscopy. Optical materials, 33(7), pp. 1024-1027. Amsterdam: North-Holland 10.1016/j.optmat.2010.08.010

Eilers, J. J.; Biner, D.; van Wijngaarden, J. T.; Krämer, K.; Güdel, H.-U.; Meijerink, A. (2010). Efficient visible to infrared quantum cutting through downconversion with the Er3+–Yb3+ couple in Cs3Y2Br9. Applied physics letters, 96(15), 151106/1-151106/3. Melville, N.Y.: American Institute of Physics 10.1063/1.3377909

Furrer, A.; Krämer, K. W.; Strassle, Th.; Biner, D.; Hauser, J.; Güdel, H. U. (2010). Magnetic and neutron spectroscopic properties of the tetrameric nickel compound [Mo12O28(m2-OH)9(m3-OH)3{Ni(H2O)3}4]·13H2O. Physical review. B - condensed matter and materials physics, 81(21), 214437/1-214437/10. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.81.214437

Sergeev, D.N.; Motalov, V.B.; Butman, M.G.; Kudin, L.S.; Krämer, K.W.; Rycerz, L.; Gaune-Escard, M. (2010). Thermodynamic parameters of vaporization of EuBr2. Russian journal of physical chemistry. A, 84(4), pp. 554-560. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024410040060

Legl, S.; Pfleiderer, C.; Krämer, K.W. (2010). Vibrating coil magnetometer for milli-Kelvin temperatures. Review of scientific instruments, 81(4), p. 43911. Woodbury, N.Y.: American Institute of Physics 10.1063/1.3374557

Putaj, P.; de Haas, J.T.M.; Krämer, K.W.; Dorenbos, P. (2010). Optical and scintillation properties of the thermal neutron scintillator Li3YCl6:Ce. IEEE transactions on nuclear science, 57(3), pp. 1675-1681. New York, N.Y.: Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2010.2048041

Cizmar, E.; Ozerov, M.; Wosnitza, J.; Thielemann, B.; Krämer, K.W.; Rüegg, Ch.; Piovesana, O.; Klanjsek, M.; Horvatic, M.; Berthier, C.; Zvyagin, S.A. (2010). Anisotropy of magnetic interactions in the spin-ladder compound (C5H12N)2CuBr4. Physical review. B - condensed matter and materials physics, 82(5), p. 54431. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.82.054431

Fischer, S.; Goldschmidt, J.C.; Löper, P.; Bauer, G.H.; Brüggemann, R.; Krämer, K.; Biner, D.; Hermle, M.; Glunz, S.W. (2010). Enhancement of silicon solar cell efficiency by upconversion: Optical and electrical characterization. Journal of applied physics, 108(4), p. 44912. Melville, N.Y.: American Institute of Physics 10.1063/1.3478742

Schaniel, Daniel; Woike, Theo; Behrnd, Norwid-R.; Hauser, Jürg; Krämer, Karl; Todorova, Teodora; Delley, Bernard (2009). Photogeneration of Nitrosyl Linkage Isomers in Octahedrally Coordinated Platinum Complexes in the Red Spectral Range. Inorganic chemistry, 48(23), pp. 11399-11406. Washington, D.C.: American Chemical Society 10.1021/ic901392q

Thielemann, B.; Rüegg, Ch.; Rønnow, H. M.; Läuchli, A. M.; Caux, J.-S.; Normand, B.; Biner, D.; Krämer, K. W.; Güdel, H.-U.; Stahn, J.; Habicht, K.; Kiefer, K.; Boehm, M.; McMorrow, D. F.; Mesot, J. (2009). Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder. Physical review letters, 102(10), p. 107204. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.102.107204

Valiente, R.; Rodríguez, F.; González, J.; Güdel, H. U.; Martín-Rodríguez, R.; Nataf, L.; Sanz-Ortiz, M. N.; Krämer, K. (2009). High pressure optical spectroscopy of Ce3+-doped Cs2NaLuCl6. Chemical physics, 481(1-3), pp. 149-151. Amsterdam: Elsevier 10.1016/j.cplett.2009.09.059

Thielemann, B.; Rüegg, Ch.; Kiefer, K.; Rønnow, H.M.; Normand, B.; Bouillot, P.; Kollath, C.; Orignac, E.; Citro, R.; Giamarchi, T.; Läuchli, A.M.; Biner, D.; Krämer, Karl; Wolff-Fabris, F.; Zapf, V.S.; Jaime, M.; Stahn, J.; Christensen, N.B.; Grenier, B.; McMorrow, D.F.; ... (2009). Field-controlled magnetic order in the quantum spin-ladder system (HPip)2CuBr4. Physical review. B - condensed matter and materials physics, 79(2), p. 20408. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.79.020408

Dell'Amore, R.; Schilling, A.; Krämer, Karl (2009). U(1) symmetry breaking and violated axial symmetry in TlCuCl3 and other insulating spin systems. Physical review. B - condensed matter and materials physics, 79(1), p. 14438. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.79.014438

Butman, Mikhail F; Kudin, Lev S; Motalov, Vladimir B; Kryuchkov, Artem S; Grishin, A.E.; Krämer, Karl (2009). Molecular and ionic sublimation of erbium tribromide. Russian journal of physical chemistry. A, 83(1), pp. 134-137. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024409010269

Krämer, Karl; Keller, L. (2009). High temperature phase and thermal expansion of PrBr3. Zeitschrift für anorganische und allgemeine Chemie, 635(6-7), pp. 982-987. Weinheim: Wiley-VCH 10.1002/zaac.200801407

Hartenbach, Ingo; Strobel, Sabine; Schleid, Thomas; Krämer, Karl; Dorhout, Peter K. (2009). Chloride derivatives of Lanthanide ortho-Oxomolybdates: 1. Structural comparison, magnetic properties, and luminescence of the LnCl[MoO4] representatives with the smaller lanthanides (Ln = Sm - Lu). Zeitschrift für anorganische und allgemeine Chemie, 635(6-7), pp. 966-975. Weinheim: Wiley-VCH 10.1002/zaac.200801380

Kudin, L.S.; Butman, M.F.; Motalov, V.B.; Nakonechnyi, S.N.; Krämer, Karl (2009). Molecular and ionic sublimation of neodymium tribromide polycrystals and single crystals. Russian journal of inorganic chemistry, 54(8), pp. 1181-1188. Letchworth, UK: MAIK Nauka/Interperiodica 10.1134/S0036023609080038

Sologubenko, A.V.; Lorenz, T.; Mydosh, J.A.; Thielemann, B.; Rønnow, H.M.; Rüegg, Ch.; Krämer, Karl (2009). Evidence for spinon localization in the heat transport of the spin-1/2 ladder compound (C5H12N)2CuBr4. Physical review. B - condensed matter and materials physics, 80(22), 220411(R). Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.80220411

van der Kolk, E.; Dorenbos, P.; Krämer, Karl; Biner, Daniel; Güdel, Hans-Ulrich (2008). High-resolution luminescence spectroscopy study of down-conversion routes in NaGdF4:Nd3+ and NaGdF4:Tm3+ using synchrotron radiation. Physical review. B - condensed matter and materials physics, 77(12), p. 125110. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.77.125110

Rüegg, Ch.; Normand, B.; Matsumoto, M.; Furrer, A.; McMorrow, D. F.; Krämer, Karl W.; Güdel, Hans-Ulrich; Gvasaliya, S. N.; Mutka, H.; Boehm, M. (2008). Quantum Magnets under Pressure: Controlling Elementary Excitations in TlCuCl3. Physical review letters, 100(20), p. 205701. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.100.205701

Birowosuto, M. Danang; Dorenbos, Pieter; Krämer, Karl W.; Güdel, Hans-Ulrich (2008). Ce3+ activated LaBr3-xIx: High-light-yield and fast-response mixed halide scintillators. Journal of applied physics, 103(10), p. 103517. Melville, N.Y.: American Institute of Physics 10.1063/1.2930884

Birowosuto, M. Danang; Dorenbos, Pieter; de Haas, Johan T. M.; van Eijk, Carel W. E.; Krämer, Karl W.; Güdel, Hans-Ulrich (2008). Li-based thermal neutron scintillator research; Rb2LiYBr6:Ce3+ and other elpasolites. IEEE transactions on nuclear science, 55(3), pp. 1152-1155. New York, N.Y.: Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2008.922826

Birowosuto, M. Danang; Dorenbos, Pieter; Bizarri, G.; van Eijk, Carel W. E.; Krämer, Karl W.; Güdel, Hans-Ulrich (2008). Temperature dependent scintillation and luminescence characteristics of GdI3:Ce3+. IEEE transactions on nuclear science, 55(3), pp. 1164-1169. New York, N.Y.: Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2007.908581

Valiente, R.; Hernández, I.; Rodríguez, F.; Aguado, F.; Güdel, Hans-Ulrich; Krämer, Karl (2008). High-pressure induced absorption line narrowing in Cs3Yb2Cl9. Journal of Physics: Conference Series, 121(4), 042002. Bristol: Institute of Physics Publishing IOP 10.1088/1742-6596/121/4/042002

Reichenbaecher, Katharina; Couderc, Gaetan; Neels, Antonia; Krämer, Karl; Weber, Edwin; Hulliger, Jürg (2008). Improved thermal stability of an organic zeolite by fluorination. Journal of inclusion phenomena and molecular recognition in chemistry, 61(1-2), pp. 127-130. Dordrecht: Kluwer Academic 10.1007/s10847-007-9404-2

Lorenz, T.; Heyer, O.; Garst, M.; Anfuso, F.; Rosch, A.; Rüegg, Ch.; Krämer, Karl (2008). Diverging thermal expansion of the spin-ladder system (C5H12N)2CuBr4. Physical review letters, 100(6), p. 67208. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.100.067208

Butman, M.F.; Motalov, V.B.; Kudin, L.S.; Grishin, A.E.; Kryuchkov, A.S.; Krämer, Karl (2008). A mass spectroscopic study of the molecular and ionic sublimation of lanthanum tribromide. Russian journal of physical chemistry. A, 82(2), pp. 164-171. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024408020040

Butman, M.F.; Kudin, L.S.; Motalov, V.B.; Vorobev, D.E.; Grishin, A.E.; Kryuchkov, A.S.; Krämer, Karl (2008). A mass spectroscopic study of the sublimation of lutetium tribromide under Knudsen and Langmuir conditions. Russian journal of physical chemistry. A, 82(4), pp. 535-543. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024408040055

Furrer, A; Juranyi, F; Krämer, Karl; Strässle, Th (2008). Reconciling exchange striction with biquadratic exchange in KMn0.1Zn0.9F3: An inelastic neutron scattering study. Physical review. B - condensed matter and materials physics, 77(13), p. 134410. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.77.134410

Butman, M.F.; Kudin, L.S.; Motalov, V.B.; Ivanov, D.A.; Sliznev, V.V.; Krämer, Karl (2008). The thermodynamic stability of the LaBr4- Ion. Russian journal of physical chemistry. A, 82(5), pp. 767-772. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024408050130

Anfuso, F; Garst, M; Rosch, A; Heyer, O; Lorenz, Th; Rüegg, Ch; Krämer, Karl (2008). Spin-spin correlation of the spin-ladder compound (C5H12N)2CuBr4 measured by magnetostriction and comparison to quantum Monte Carlo results. Physical review. B - condensed matter and materials physics, 77(23), p. 235113. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.77.235113

Krumpel, A. H.; van der Kolk, E.; Zeelenberg, D.; Bos, A. J. J.; Krämer, Karl; Dorenbos, P. (2008). Lanthanide 4f-level location in lanthanide doped and cerium-lanthanide codoped NaLaF4 by photo- and thermoluminescence. Journal of applied physics, 104(7), p. 73505. Melville, N.Y.: American Institute of Physics 10.1063/1.2955776

Butman, M.F.; Motalov, V.B.; Kudin, L.S.; Kryuchkov, A.S.; Grishin, A.E.; Krämer, Karl (2008). A jump change in the sublimation coefficient of the PrBr3 single crystal at the polymorphic transition point. Russian journal of physical chemistry. A, 82(11), pp. 1972-1974. Moscow: MAIK Nauka/Interperiodica 10.1134/S0036024408110332

Rüegg, Ch; Kiefer, K; Thielemann, B; McMorrow, D.F.; Zapf, V; Normand, B; Zvonarev, M.B.; Bouillot, P; Kollath, C; Giamarchi, T; Capponi, S; Poilblanc, D; Biner, D; Krämer, Karl (2008). Thermodynamics of the spin Luttinger liquid in a model ladder material. Physical review letters, 101(24), p. 247202. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.101.247202

Motalov, V.B.; Butman, M.F.; Kudin, L.S.; Krämer, Karl; Rycerz, L; Gaune-Escard, M (2008). A mass spectroscopic study of the vaporization of cerium tribromide under Knudsen and Langmuir conditions. Journal of molecular liquids, 142(1-3), pp. 78-82. Amsterdam: Elsevier Science B.V. 10.1016/j.molliq.2008.05.002

Dell'Amore, Raffaele; Schilling, Andreas; Krämer, Karl (2008). Fraction of Bose-Einstein condensed triplons in TlCuCl3 from magnetization data. Physical review. B - condensed matter and materials physics, 78(22), p. 224403. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.78.224403

Birowosuto, M. Danang; Dorenbos, Pieter; de Haas, Johan; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2007). Thermal-neutron scintillator: Ce3+ activated Rb2LiYBr6. Journal of applied physics, 101(6), p. 66107. Melville, N.Y.: American Institute of Physics 10.1063/1.2713948

Birowosuto, Muhammad; Dorenbos, Pieter; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2007). Scintillation and luminescence properties of Ce3+ doped ternary cesium rare-earth halides. Physica status solidi. A - applications and materials science, 204(3), pp. 850-860. Weinheim: Wiley-VCH 10.1002/pssa.200622459

Braun, Hans-Benjamin; Kulda, Jiri; Roessli, Bertrand; Visser, Dirk; Krämer, Karl; Güdel, Hans-Ulrich; Böni, Peter (2007). Chiral quantum excitations in the anisotropic antiferromagnet CsCoBr3. Journal of Magnetism and Magnetic Materials, 310(2, Part 2), pp. 1194-1196. Amsterdam: North-Holland Publ. Co. 10.1016/j.jmmm.2006.10.307

Grimm, Judith; Fleniken, J; Krämer, Karl; Biner, Daniel; Happek, U; Güdel, Hans-Ulrich (2007). On the determination of photoionization thresholds of Ce3+ doped Cs3LuCl6, Cs2LiLuCl6 and Cs2LiYCl6 by thermoluminescence. Journal of luminescence, 122-123, pp. 325-328. Amsterdam: North-Holland 10.1016/j.jlumin.2006.01.164

Schaniel, Dominik; Imlau, Mirco; Weisemoeller, Thomas; Woike, Theo; Krämer, Karl; Güdel, Hans-Ulrich (2007). Photoinduced Nitrosyl Linkage Isomers Uncover a Variety of Unconventional Photorefractive Media (Communication). Advanced materials, 19(5), pp. 723-726. Weinheim: Wiley-VCH 10.1002/adma.200601378

Grimm, Judith; Wenger, Oliver; Krämer, Karl; Güdel, Hans-Ulrich (2007). 4f 4f and 4f 5d excited states and luminescence properties of Tm2+- doped CaF2, CaCl2, SrCl2 and BaCl2. Journal of luminescence, 126(2), pp. 590-596. Amsterdam: North-Holland 10.1016/j.jlumin.2006.10.007

Schaniel, Dominik; Benoit, Cormary; Malfant, Isabelle; Valade, Lydie; Woike, Theo; Delley, Bernard; Krämer, Karl W.; Güdel, Hans-Ulrich (2007). Photogeneration of two metastable NO linkage isomers with high populations of up to 76% in trans-[RuCl(py)4(NO)][PF6]2 1/2H2O. Physical Chemistry Chemical Physics, 9(28), pp. 3717-3724. Cambridge: Royal Society of Chemistry 10.1039/b704778a

Birowosuto, Muhammad; Dorenbos, Pieter; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2007). Thermal quenching of Ce3+ emission in PrX3 (X = Cl, Br) by intervalence charge transfer. Journal of Physics: Condensed Matter, 19(25), p. 256209. Bristol: Institute of Physics Publishing IOP 10.1088/0953-8984/19/25/256209

Schaniel, Dominik; Woike, Theo; Delley, Bernard; Biner, Daniel; Krämer, Karl; Güdel, Hans-Ulrich (2007). Generation of one light-induced metastable nitrosyl linkage isomer in [Pt(NH3)4Cl(NO)]Cl2 in the red spectral range. Physical Chemistry Chemical Physics, 9(37), pp. 5149-5157. Cambridge: Royal Society of Chemistry 10.1039/b707912e

Couderc, Gaëtan; Hertzsch, Tino; Behrnd, Norwid-Rasmus; Krämer, Karl; Hulliger, Jürg (2006). Reversible sorption of nitrogen and xenon gas by the guest-free zeolite tris(o-phenylenedioxy)cyclotriphosphazene (TPP). Microporous and mesoporous materials, 88(1-3), pp. 170-175. Amsterdam: Elsevier 10.1016/j.micromeso.2005.08.036

Suyver, J. Freek; Grimm, Judith; van Veen, Marieke; Biner, Daniel; Krämer, Karl; Güdel, Hans-Ulrich (2006). Upconversion spectroscopy and properties of NaYF4 doped with Er3+, Tm3+ and/or Yb3+. Journal of luminescence, 117(1), pp. 1-12. Amsterdam: North-Holland 10.1016/j.jlumin.2005.03.011

Dorenbos, Pieter; van Loef, E; Vink, A; van der Kolk, E; van Eijk, C; Krämer, Karl; Güdel, Hans-Ulrich; Higgins, W; Shah, K (2006). Level location and spectroscopy of Ce3+, Pr3+, Er3+, and Eu2+ in LaBr3. Journal of luminescence, 117(2), pp. 147-155. Amsterdam: North-Holland 10.1016/j.jlumin.2005.04.016

Bessière, Aurélie; Dorenbos, Pieter; van Eijk, Wilhelm; Krämer, Karl; Güdel, Hans-Ulrich; Galtayries, Anouk (2006). Scintillation and anomalous emission in elpasolite Cs2LiLuCl6:Ce3+. Journal of luminescence, 117(2), pp. 187-198. Amsterdam: North-Holland 10.1016/j.jlumin.2005.05.005

Birowosuto, M. Danang; Dorenbos, Pieter; de Haas, Johan; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2006). Optical spectroscopy and luminescence quenching of LuI3:Ce3+. Journal of luminescence, 118(2), pp. 308-316. Amsterdam: North-Holland 10.1016/j.jlumin.2005.09.001

Aebischer, Annina; Hostettler, Marc; Hauser, Jürg; Krämer, Karl; Weber, Thomas; Güdel, Hans-Ulrich; Bürgi, Hans-Beat (2006). Structural and Spectroscopic Characterization of Active Sites in a Family of Light-Emitting Sodium Lanthanide Tetrafluorides. Angewandte Chemie (International ed.), 45(17), pp. 2802-2806. Weinheim: Wiley-VCH 10.1002/anie.200503966

Schaniel, Dominik; Woike, Theo; Schefer, Jürg; Petrícek, Vaclav; Krämer, Karl; Güdel, Hans-Ulrich (2006). Neutron diffraction shows a photoinduced isonitrosyl linkage isomer in the metastable state SI of Na2[Fe(CN)5NO] 2D2O. Physical review. B - condensed matter and materials physics, 73(17), p. 174108. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.73.174108

Krämer, Karl; Dorenbos, Pieter; Güdel, Hans-Ulrich; van Eijk, Eduard (2006). Development and characterization of highly efficient new cerium doped rare earth halide scintillator materials. Journal of materials chemistry, 16(27), pp. 2773-2780. Cambridge: Royal Society of Chemistry 10.1039/b602762h

Birowosuto, M. Danang; Dorenbos, Pieter; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2006). High-light-output scintillator for photodiode readout: LuI3:Ce3+. Journal of applied physics, 99(12), p. 123520. Melville, N.Y.: American Institute of Physics 10.1063/1.2207689

Birowosuto, Muhammad; Dorenbos, Pieter; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2006). Scintillation properties and anomalous Ce3+ emission of Cs2NaREBr6:Ce3+ (RE = La,Y,Lu). Journal of Physics: Condensed Matter, 18(26), 6133 6148. Bristol: Institute of Physics Publishing IOP 10.1088/0953-8984/18/26/031

Birowosuto, M. Danang; Dorenbos, Pieter; van Eijk, Carel; Krämer, Karl; Güdel, Hans-Ulrich (2006). PrBr3: Ce3+: A New Fast Lanthanide Trihalide Scintillator. IEEE transactions on nuclear science, 53(5), pp. 3028-3030. New York, N.Y.: Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2006.880969

Rüegg, Ch.; Normand, B.; Matsumoto, M.; Niedermayer, Ch.; Furrer, A.; Krämer, Karl; Güdel, Hans-Ulrich; Bourges, Ph.; Sidis, Y.; Mutka, H. (2005). Quantum Statistics of Interacting Dimer Spin Systems. Physical review letters, 95(26) American Physical Society 10.1103/PhysRevLett.95.267201

Suyver, J.F.; Aebischer, A.; Biner, Daniel; Gerner, P.; Grimm, J.; Heer, S.; Krämer, Karl; Reinhard, C.; Güdel, Hans-Ulrich (2005). Novel materials doped with trivalent lanthanides and transition metal ions showing near-infrared to visible photon upconversion. Optical materials, 27(6), pp. 1111-1130. North-Holland 10.1016/j.optmat.2004.10.021

Bessiere, A.; Dorenbos, P.; van Eijk, C.W.E.; Krämer, Karl; Güdel, Hans-Ulrich; de Mello Donega, C.; Meijerink, A. (2005). Luminescence and scintillation properties of the small band gap compound LaI3:Ce3+. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 537(1-2), pp. 22-26. North-Holland 10.1016/j.nima.2004.07.224

Bessiere, A.; Dorenbos, P.; E. van Eijk, C.W.; Krämer, Karl; Güdel, Hans-Ulrich (2005). Luminescence and scintillation properties of CS2LiYCl6:Ce3+ for γ and neutron detection. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 537(1-2), pp. 242-246. North-Holland 10.1016/j.nima.2004.08.018

Schaniel, Dominik; Woike, Theo; Delley, Bernard; Boskovic, Colette; Biner, Daniel; Krämer, Karl; Güdel, Hans-Ulrich (2005). Long-lived light-induced metastable states in trans-[Ru(NH3)4(H2O)NO]Cl3·H2O and related compounds. Physical Chemistry Chemical Physics, 7(6), p. 1164. Royal Society of Chemistry 10.1039/b415435e

Suyver, J.F.; Grimm, J.; Krämer, Karl; Güdel, Hans-Ulrich (2005). Highly efficient near-infrared to visible up-conversion process in. Journal of luminescence, 114(1), pp. 53-59. North-Holland 10.1016/j.jlumin.2004.11.012

Braun, Hans-Benjamin; Kulda, Jiri; Roessli, Bertrand; Visser, Dirk; Krämer, Karl; Güdel, Hans-Ulrich; Böni, Peter (2005). Emergence of soliton chirality in a quantum antiferromagnet. Nature physics, 1(3), pp. 159-163. Nature Publishing Group 10.1038/nphys152

Shalav, A.; Richards, B. S.; Trupke, T.; Krämer, Karl; Güdel, Hans-Ulrich (2005). Application of NaYF[sub 4]:Er[sup 3+] up-converting phosphors for enhanced near-infrared silicon solar cell response. Applied physics letters, 86(1), 013505. American Institute of Physics 10.1063/1.1844592

Krämer, Karl; Biner, Daniel; Frei, Gabriela Claudia; Güdel, Hans-Ulrich; Hehlen, Markus P.; Lüthi, Stefan R. (2004). Hexagonal Sodium Yttrium Fluoride Based Green and Blue Emitting Upconversion Phosphors. Chemistry of materials, 16(7), pp. 1244-1251. American Chemical Society 10.1021/cm031124o

Franz, Patrick; Ambrus, Christina; Hauser, Andreas; Chernyshov, Dmitry; Hostettler, Marc; Hauser, Jürg; Keller, Lukas; Krämer, Karl; Stoeckli-Evans, Helen; Pattison, Philip; Bürgi, Hans-Beat; Decurtins, Silvio (2004). Crystalline, Mixed-Valence Manganese Analogue of Prussian Blue: Magnetic, Spectroscopic, X-ray and Neutron Diffraction Studies. Journal of the American Chemical Society, 126(50), pp. 16472-16477. American Chemical Society 10.1021/ja0465451

Reinhard, Christine; Krämer, Karl; Biner, Daniel; Güdel, Hans-Ulrich (2004). V3+ sensitized upconversion in Cs2NaScCl6:Pr3+;V3+ and K2NaScF6:Er3+;V3+. Journal of Alloys and Compounds, 374(1-2), pp. 133-136. Elsevier 10.1016/j.jallcom.2003.11.068

Rüegg, Ch; Cavadini, N; Furrer, A; Krämer, Karl; Güdel, Hans-Ulrich; Vorderwisch, P; Habicht, K; Mutka, H; Wildes, A (2004). Spin dynamics in the BEC phase of the S=1/2 quantum spin system TlCuCl3. Journal of Magnetism and Magnetic Materials, 272-276, pp. 195-196. North-Holland Publ. Co. 10.1016/j.jmmm.2003.11.075

Bessière, A; Dorenbos, P; Eijk, C W E van; Pidol, L; Krämer, Karl; Güdel, Hans-Ulrich (2004). Spectroscopy and anomalous emission of Ce doped elpasolite Cs 2 LiY Cl 6. Journal of Physics: Condensed Matter, 16(10), pp. 1887-1897. Institute of Physics Publishing IOP 10.1088/0953-8984/16/10/019

Rüegg, Ch.; Furrer, A.; Sheptyakov, D.; Strässle, Th.; Krämer, Karl; Güdel, Hans-Ulrich; Mélési, L. (2004). Pressure-Induced Quantum Phase Transition in the Spin-Liquid T l C u C l 3. Physical review letters, 93(25) American Physical Society 10.1103/PhysRevLett.93.257201

Strässle, Th.; Juranyi, F.; Schneider, M.; Janssen, S.; Furrer, A.; Krämer, Karl; Güdel, Hans-Ulrich (2004). Origin of Higher Order Magnetic Exchange: Evidence for Local Dimer Exchange Striction in CsMn 0.28 Mg 0.72 Br 3 Probed by Inelastic Neutron Scattering. Physical review letters, 92(25), p. 257202. American Physical Society 10.1103/PhysRevLett.92.257202

Bessiere, A.; Dorenbos, P.; van Eijk, C.W.E.; Krämer, Karl; Güdel, Hans-Ulrich (2004). New thermal neutron scintillators: Cs2LiYCl6 : Ce3+ and Cs2LiYBr6 : Ce3+. IEEE transactions on nuclear science, 51(5), pp. 2970-2972. Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/TNS.2004.834957

Rüegg, Ch.; Oettli, M.; Schefer, J.; Zaharko, O.; Furrer, A.; Tanaka, H.; Krämer, Karl; Güdel, Hans-Ulrich; Vorderwisch, P.; Habicht, K.; Polinski, T.; Meissner, M. (2004). Neutron Scattering Study of the Field-Dependent Ground State and the Spin Dynamics in Spin-One-Half N H 4 C u C l 3. Physical review letters, 93(3), 037207. American Physical Society 10.1103/PhysRevLett.93.037207

Reinhard, Christine; Krämer, Karl; Biner, Daniel; Güdel, Hans-Ulrich (2004). Cooperative radiative and nonradiative effects in K[sub 2]NaScF[sub 6] codoped with V[sup 3+] and Er[sup 3+]. The Journal of Chemical Physics, 120(7), p. 3374. American Institute of Physics 10.1063/1.1640335

van Loef, E.V.D; Dorenbos, P; van Eijk, C.W.E; Krämer, Karl; Güdel, Hans-Ulrich (2003). Properties and mechanism of scintillation in LuCl3:Ce3+ and LuBr3:Ce3+ crystals. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 496(1), pp. 138-145. North-Holland 10.1016/S0168-9002(02)01634-0

Cavadini, N.; Andreica, D.; Gygax, F.N.; Schenck, A.; Krämer, Karl; Güdel, Hans-Ulrich; Mutka, H.; Wildes, A. (2003). Local spin susceptibility in KCuCl3. Physica B-Condensed Matter, 335(1-4), pp. 37-40. Elsevier 10.1016/S0921-4526(03)00186-8

van Loef, E. V. D.; Dorenbos, P.; van Eijk, C. W. E.; Krämer, Karl; Güdel, Hans-Ulrich (2003). Influence of the anion on the spectroscopy and scintillation mechanism in pure and Ce 3 + -doped K 2 La X 5 and La X 3 ( X = Cl , Br, I). Physical Review B, 68(4), 045108. American Institute of Physics 10.1103/PhysRevB.68.045108

Gerner, Pascal; Krämer, Karl; Güdel, Hans-Ulrich (2003). Broad-band Cr5+-sensitized Er3+ luminescence in YVO4. Journal of luminescence, 102-103, pp. 112-118. North-Holland 10.1016/S0022-2313(02)00476-3

Rüegg, Ch.; Cavadini, N.; Furrer, A.; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H.; Wildes, A.; Habicht, K.; Vorderwisch, P. (2003). Bose–Einstein condensation of the triplet states in the magnetic insulator TlCuCl3. Nature, 423(6935), pp. 62-65. Macmillan Journals Ltd. 10.1038/nature01617

Dorenbos, P.; van Loef, E.V.D.; van Eijk, C.W.E.; Krämer, Karl; Güdel, Hans-Ulrich (2003). Anomalous 10-ns emission in Ce 3 + -doped Cs 3 LuCl 6. Physical Review B, 68(12) American Institute of Physics 10.1103/PhysRevB.68.125108

Cavadini, N.; Rüegg, Ch.; Furrer, A.; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H.; Vorderwisch, P. (2002). Triplet excitations in low- H c spin-gap systems KCuCl 3 and TlCuCl 3 : An inelastic neutron scattering study. Physical Review B, 65(13), p. 132415. American Institute of Physics 10.1103/PhysRevB.65.132415

Rüegg, Ch.; Cavadini, N.; Furrer, A.; Krämer, Karl; Güdel, Hans-Ulrich; Vorderwisch, P.; Mutka, H. (2002). Spin dynamics in the high-field phase of quantum-critical S =1/2 TlCuCl 3. Applied physics. A, Materials science & processing, 74, s840-s842. Springer-Verlag Heidelberg 10.1007/s003390101156

Heer, S.; Wermuth, M.; Krämer, Karl; Güdel, Hans-Ulrich (2002). Sharp 2 E upconversion luminescence of Cr 3 + in Y 3 Ga 5 O 12 codoped with Cr 3 + and Yb 3 +. Physical Review B, 65(12), p. 125112. American Institute of Physics 10.1103/PhysRevB.65.125112

van Loef, E.V.D; Dorenbos, P; van Eijk, C.W.E; Krämer, Karl; Güdel, Hans-Ulrich (2002). Scintillation properties of LaBr3:Ce3+ crystals: fast, efficient and high-energy-resolution scintillators. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 486(1-2), pp. 254-258. North-Holland 10.1016/S0168-9002(02)00712-X

Allier, C.P; van Loef, E.V.D; Dorenbos, P; Hollander, R.W; van Eijk, C.W.E; Krämer, Karl; Güdel, Hans-Ulrich (2002). Readout of a LaCl3(Ce3+) scintillation crystal with a large area avalanche photodiode. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 485(3), pp. 547-550. North-Holland 10.1016/S0168-9002(01)02145-3

CAVADINI, N.; RüEGG, CH.; FURRER, A.; Güdel, Hans-Ulrich; Krämer, Karl; MUTKA, H.; WILDES, A.; HABICHT, K.; VORDERWISCH, P. (2002). TRIPLET MODES IN A QUANTUM SPIN LIQUID ACROSS THE CRITICAL FIELD. International Journal of Modern Physics B, 16(20n22), pp. 3302-3305. World Scientific 10.1142/S0217979202014243

Krämer, Karl; Güdel, Hans-Ulrich; Fischer, P.; Keller, L. (2002). Magnetic order in CeI 2. Applied physics. A, Materials science & processing, 74, s595-s597. Springer-Verlag Heidelberg 10.1007/s003390101124

Mackay Salley, G.; Wenger, Oliver S.; Krämer, Karl; Güdel, Hans-Ulrich (2002). Inorganic solid state optical materials: Major recent advances. Current opinion in solid state & materials science, 6(6), pp. 487-493. Current Science Ltd. 10.1016/S1359-0286(02)00024-4

Cavadini, N.; Heigold, G.; Henggeler, W.; Furrer, A.; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H. (2001). Magnetic excitations in the quantum spin system TlCuCl 3. Physical Review B, 63(17) American Institute of Physics 10.1103/PhysRevB.63.172414

van Loef, E. V. D.; Dorenbos, P.; van Eijk, C. W. E.; Krämer, Karl; Güdel, Hans-Ulrich (2001). High-energy-resolution scintillator: Ce[sup 3+] activated LaBr[sub 3]. Applied physics letters, 79(10), p. 1573. American Institute of Physics 10.1063/1.1385342

van Eijk, C.W.E.; Dorenbos, P.; van Loef, E.V.D.; Krämer, Karl; Güdel, Hans-Ulrich (2001). Energy resolution of some new inorganic-scintillator gamma-ray detectors. Radiation measurements, 33(5), pp. 521-525. Pergamon 10.1016/S1350-4487(01)00045-2

Schaniel, D.; Allenspach, P.; Furrer, A.; Krämer, Karl; Güdel, Hans-Ulrich (2001). Dimer splitting of Er3+ in Cs3Er2Br9. Journal of Alloys and Compounds, 323-324, pp. 481-485. Elsevier 10.1016/S0925-8388(01)01044-1

Krämer, Karl; Schenker, Ralph; Hauser, Jürg; Weihe, Høgni; Güdel, Hans-Ulrich; Bürgi, Hans-Beat (2001). Crystal Structures of (Et4N)3M2F9 (M = V, Cr, Fe) determined by X-Ray Single-Crystal and Powder Diffraction: A New Structure Type for A3M2X9 Compounds. Zeitschrift für anorganische und allgemeine Chemie, 627(11), pp. 2511-2516. Wiley-VCH 10.1002/1521-3749(200111)627:11<2511::AID-ZAAC2511>3.0.CO;2-J

Wenger, Oliver S.; Wickleder, Claudia; Krämer, Karl; Güdel, Hans-Ulrich (2001). Upconversion in a divalent rare earth ion: optical absorption and luminescence spectroscopy of Tm2+ doped SrCl2. Journal of luminescence, 94-95, pp. 101-105. North-Holland 10.1016/S0022-2313(01)00255-1

Heer, S.; Wermuth, M.; Krämer, Karl; Güdel, Hans-Ulrich (2001). Upconversion excitation of Cr3+2E emission in Y3Ga5O12 codoped with Cr3+ and Yb3+. Chemical physics letters, 334(4-6), pp. 293-297. North-Holland 10.1016/S0009-2614(00)01444-5

Heer, S.; Wermuth, M.; Krämer, Karl; Ehrentraut, D.; Güdel, Hans-Ulrich (2001). Up-conversion excitation of sharp Cr3+ 2E emission in YGG and YAG codoped with Cr3+ and Yb3+. Journal of luminescence, 94-95, pp. 337-341. North-Holland 10.1016/S0022-2313(01)00395-7

van Loef, E.V.D.; Dorenbos, L.P.; van Eijk, C.W.E.; Krämer, Karl; Güdel, Hans-Ulrich (2001). Scintillation properties of LaCl/sub 3/:Ce/sup 3+/ crystals: fast, efficient, and high-energy resolution scintillators. IEEE transactions on nuclear science, 48(3), pp. 341-345. Professional Technical Group on Nuclear Science, Institute of Electrical and Electronics Engineers IEEE 10.1109/23.940077

van Loef, E.V.D.; Dorenbos, P.; van Eijk, C.W.E.; Krämer, Karl; Güdel, Hans-Ulrich (2001). Optical and scintillation properties of pure and Ce3+ doped GdBr3. Optics communications, 189(4-6), pp. 297-304. Elsevier 10.1016/S0030-4018(01)01039-2

Krämer, Karl; Güdel, Hans-Ulrich; Fischer, P.; Fauth, F.; Fernandez-Diaz, M.T.; Hauß, T. (2000). Triangular antiferromagnetic order in the honeycomb layer lattice of. European physical journal. B - condensed matter and complex systems, 18(1), pp. 39-47. EDP Sciences 10.1007/s100510070075

Cavadini, N.; Rüegg, Ch.; Henggeler, Wolfgang; Furrer, A.; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H. (2000). Temperature renormalization of the magnetic excitations in S = 1/2 KCuCl3. European physical journal. B - condensed matter and complex systems, 18(4), pp. 565-571. EDP Sciences 10.1007/s100510070003

Cavadini, N; Heigold, G; Henggeler, Wolfgang; Furrer, Anja Christina; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H (2000). Quantum magnetic interactions in S = 1/2 KCuCl 3. Journal of Physics: Condensed Matter, 12(25), pp. 5463-5472. Institute of Physics Publishing IOP 10.1088/0953-8984/12/25/310

Andreica, D.; Cavadini, N.; Güdel, Hans-Ulrich; Gygax, F.N.; Krämer, Karl; Pinkpank, M.; Schenck, A. (2000). Muon-induced break up of spin-singlet pairs in the double-chain compound KCuCl3. Physica B-Condensed Matter, 289-290, pp. 176-180. Elsevier 10.1016/S0921-4526(00)00355-0

Krämer, Karl; Güdel, Hans-Ulrich; Roessli, B; Fischer, P; Dönni, A; Wada, N; Fauth, F; Fernandez-Diaz, M.T; Hauss, T (2000). Magnetic ordering in the erbium honeycomb lattices of ErX3 (X=Cl, Br, I). Physica B-Condensed Matter, 276-278, pp. 674-675. Elsevier 10.1016/S0921-4526(99)01724-X

Cavadini, N; Henggeler, W; Furrer, A; Güdel, Hans-Ulrich; Krämer, Karl; Mutka, H (2000). Magnetic excitations and spin gap in KCuCl3. Physica B-Condensed Matter, 276-278, pp. 540-542. Elsevier 10.1016/S0921-4526(99)01747-0

Burlot-Loison, R.; Pollnau, M.; Krämer, Karl; Egger, P.; Hulliger, Jürg; Güdel, Hans-Ulrich (2000). Laser-relevant spectroscopy and upconversion mechanisms of Er3+ in Ba2YCl7 pumped at 800 nm. Journal of the Optical Society of America. B - optical physics, 17(12), pp. 2055-2067. Optical Society of America 10.1364/JOSAB.17.002055

van Loef, E. V. D.; Dorenbos, P.; van Eijk, C. W. E.; Krämer, Karl; Güdel, Hans-Ulrich (2000). High-energy-resolution scintillator: Ce[sup 3+] activated LaCl[sub 3]. Applied physics letters, 77(10), pp. 1467-1468. American Institute of Physics 10.1063/1.1308053

Schaniel, D; Allenspach, P; Furrer, A; Krämer, Karl; Güdel, Hans-Ulrich (2000). Dimer splitting of Er3+ in Cs3Er2X9 (X=Cl,Br): mystery solved. Physica B-Condensed Matter, 276-278, pp. 690-691. Elsevier 10.1016/S0921-4526(99)01802-5

Andres, H. P.; Krämer, Karl; Güdel, Hans-Ulrich (1996). Optical absorption and luminescence spectroscopy of U 3 + in K 2 La X 5 ( X =Cl,Br,I). Physical Review B, 54(6), pp. 3830-3840. American Institute of Physics 10.1103/PhysRevB.54.3830

Pollnau, M.; Lüthy, Willy; Weber, Heinz; Krämer, Karl; Güdel, Hans-Ulrich; McFarlane, R. A. (1996). Excited-state absorption in Er: BaY2F8 and Cs3Er2Br9 and comparison with Er: LiYF4. Applied physics. B, Lasers and optics, 62(4), pp. 339-344. Springer 10.1007/BF01081195

Conference or Workshop Item

Tessitore, Gabriella; Mudring, Anja-Verena; Krämer, Karl (23 August 2016). Room temperature synthesis of β-NaGdF4:RE3+ (RE = Eu, Er) nanocrystallites and their luminescence (Unpublished). In: 6th Interantional Conference on Excited States of Transition Elements (ESTE). Polanica Zdroj, Poland. 21.-26.08.2016.

Villanueva Delgado, Pedro; Krämer, Karl; Valiente, Rafael (22 August 2016). Energy transfer and upconversion in Tm3+-doped β-NaYF4: comparison between models and theory (Unpublished). In: 6th Interantional Conference on Excited States of Transition Elements (ESTE). Polanica Zdroj, Poland. 21.-26.08.2016.

Krämer, Karl (22 August 2016). Resonance in Upconversion Excitation (Unpublished). In: 6th International Conference on Excited States of Transition Elements (ESTE). Polanica-Zdroj, Poland. 21.-26.08.2016.

Villanueva Delgado, Pedro; Krämer, Karl; Valiente, Rafael (18 July 2016). Modelling Blue to UV Upconversion in β-NaYF4: 0.3% Tm3+. 19th International Conference on Dynamical Processes in Excited States of Solids. Book of Abstracts, p. 75.

Lanza, Arianna; Scatena, Rebecca; Rezende dos Santos, Leonardo Humberto; Kubus, Mariusz; Krämer, Karl; Keller, Lukas; Fennell, Tom; Wehinger, Björn; Biffin, Alun; Rüegg, Christian; Casati, Nicola; Macchi, Piero (2016). Copper-pyrazine magnetic polymers under high pressure. Acta Crystallographica Section A Foundations and Advances, 72(a1), s88. International Union of Crystallography 10.1107/S2053273316098697

Scatena, Rebecca; Rezende dos Santos, Leonardo Humberto; Lanza, Arianna; Casati, Nicola; Wehinger, Björn; Rüegg, Christian; Kubus, Mariusz; Krämer, Karl; Keller, Lukas; Fennell, Tom; Biffin, Alun; Macchi, Piero (2016). Electron density analysis in quantum magnets. Acta Crystallographica Section A Foundations and Advances, 72(a1), s313-s313. International Union of Crystallography 10.1107/S2053273316095309

Kubus, Mariusz; Lanza, Arianna; Casati, Nicola; Macchi, Piero; Keller, Lukas; Fiolka, Christoph; Schefer, Jürg; Rüegg, Christian; Krämer, Karl (2016). New antiferromagnets [CuX(pyz) 2 ](BF 4 ) with X = Cl and Br. Acta Crystallographica Section A Foundations and Advances, 72(a1), s92. International Union of Crystallography 10.1107/S2053273316098648

Fischer, S.; Fröhlich, B.; Ivaturi, A.; Herter, B.; Wolf, S.; Krämer, Karl; Richards, B. S.; Goldschmidt, J. C. (2014). Upconverter materials and upconversion solar-cell devices: simulation and characterization with broad solar spectrum illumination. In: Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III. Proceedings of SPIE: Vol. 8981 (89810B). SPIE 10.1117/12.2039407

Fischer, S.; Steinkemper, H.; Krämer, Karl; Goldschmidt, J.C. (2012). Concepts to enhance the efficiency of upconversion for solar applications. In: Wehrspohn, Ralf; Gombert, Andreas (eds.) Photonics for Solar Energy Systems IV. Proceedings of SPIE: Vol. 8438 (p. 843806). Bellingham: SPIE 10.1117/12.922183

Goldschmidt, J.C.; Fischer, S.; Steinkemper, H.; Herter, B.; Rist, T.; Wolf, S.; Bläsi, B.; Hallermann, F.; von Plessen, G.; Krämer, K.W.; Biner, D.; Hermle, M. (2012). Increasing upconversion by metal and dielectric nanostructures. In: Freundlich, Alexandre; Guillemoles, Jean-Francois F. (eds.) Physics, Simulation, and Photonic Engineering of Photovoltaic Devices. Proceedings of SPIE: Vol. 8256 (p. 825602). Bellingham: SPIE 10.1117/12.910915

Nguyen, H.; Odermatt, Jan; Grimaudo, Valentine; Krämer, Karl; Broekmann, Peter (2012). Electrochemical oscillation in the additives-assisted copper electroplating: a mechanistic study on the role of intermediate species at the copper/electrolyte interface. Book of Abstracts(P2.070), p. 469.

Goldschmidt, J.C.; Fischer, S.; Löper, P.; Krämer, K.W.; Biner, D.; Hermle, M.; Glunz, S.W. (2010). Upconversion to enhance silicon solr cell efficiency - detailed experimental analysis with both coherent monochromatic irradiation and white light illumination. In: Proceedings of the 25th Eur. Photovoltaic Solar Energy Conf. and 5th World Conf. on Photovoltaic Energy Conversion, 09/2010, Valencia, Spain.

Fischer, S.; Goldschmidt, J.C.; Krämer, K.W.; Biner, D.; Hermle, M.; Glunz, S.W. (2010). Calibrated photoluminiszence of the upconverter NaYF4:20% Er3+ for silicon solar cells. In: Proceedings of the 25th Eur. Photovoltaic Solar Energy Conf. and 5th World Conf. on Photovoltaic Energy Conversion, 09/2010, Valencia, Spain.

Goldschmidt, J.C.; Loper, P.; Fischer, S.; Janz, S.; Peters, M.; Glunz, S.W.; Willeke, G.; Lifshitz, E.; Krämer, Karl; Biner, Daniel (2009). Advanced upconverter systems with spectral and geometric concentration for high upconversion efficiencies. Proceedings of the IUMRS International Conference on Electronic Materials Commad 2008(28.7.-1.8.08), pp. 307-311. 10.1109/COMMAD.2008.4802153

Löper, P.; Goldschmidt, J.C.; Fischer, S.; Peters, M.; Meijerink, A.; Biner, Daniel; Krämer, Karl; Schultz-Wittmann, O.; Glunz, S.W.; Luther, J. (2009). Upconversion for silicon solar cells: Material and system characterization. European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), pp. 173-180. 10.4229/23rdEUPVSEC2008-1CO.3.1

Fischer, S.; Goldschmidt, J.C.; Löper, P.; Janz, S.; Peters, M.; Glunz, S.W.; Kigel, A.; Lifshitz, E.; Krämer, Karl; Biner, Daniel; Bauer, G.H.; Brüggemann, R. (2009). Material characterization for advanced upconverter systems. European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), pp. 620-623. 10.4229/23rdEUPVSEC2008-1CV.2.68

Krämer, Karl; Keller, Lukas (2007). High temperature phase and thermal expansion of PrBr3. Referat am Kongress XX. Tage der Seltenen Erden - Terrae Rarae 2007.

Krämer, Karl (2007). Thermal expansion and high temperature phase of PrBr3. In: 4th European Conference on Neutron Scattering, 25-29 June 2007, Lund, Sweden. European Neutron Scattering Association

Löper, Philipp; Goldschmidt, Jan; Peters, Marius; Biner, Daniel; Krämer, Karl; Schultz, O; Glunz, S.W.; Luther, J (2007). Efficient upconversion systems for silicon solar cells. In: Proceeding of the 22nd European Photovoltaic Solar Energy Conference, 3.-7.9.2007, Milan (pp. 589-594). Verlag fehlt

Shalav, Avi; Richards, Bryce; Krämer, Karl; Conibeer, Gavin; Green, Martin (2007). Two colour excitation up-conversion efficiency enhancement for a silicon photovoltaic device using Er3+-doped phosphors. In: Conference Record of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, Vol. 1 (pp. 45-48). Verlag fehlt 10.1109/WCPEC.2006.279342

Thesis

Villanueva Delgado, Pedro (2016). UPCONVERSION IN beta-NaYF4: Yb3+, Tm3+: SYNTHESIS, EXPERIMENTS, AND MODELS. (Dissertation, Departement für Chemie und Biochemie, Science)

Hänni, Nora (2016). Structural and Magnetic Properties of Low-Dimensional Ternary Chlorides. (Dissertation, Departement für Chemie und Biochemie, Philosophisch-naturwissenschaftliche Fakultät, Universität Bern)

Patent

Stichting Voor De Technische Wetenschappen, Neth.; Saint-Gobain Ceramics & Plastics, Inc.; Universite De Berne. (2014). Scintillation crystal including a rare earth halide, and a radiation detection apparatus including the scintillation crystal. (WO2014066900A1)

  • Schweizerische Gesellschaft für Neutronenstreuung (SGN)
  • Berner Chemische Gesellschaft (BCG)
  • Gesellschaft Deutscher Chemiker (GDCh)