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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
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
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
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
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
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
