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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
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
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
