Absolute Upconversion Quantum Yield of ß-NaYF4 Doped with Er³+ and External Quantum Efficiency of Solar Cell Upconverter Devices under Broad-Band Excitation considering Spectral Mismatch Corrections

Fischer, S.S.FischerFröhlich, B.B.FröhlichSteinkemper, HeikoHeikoSteinkemperKrämer, K.W.K.W.KrämerGoldschmidt, Jan ChristophJan ChristophGoldschmidt2022-03-122022-03-122012https://publica.fraunhofer.de/handle/publica/37962310.1364/pv.2012.pw2b.42-s2.0-84893505341We investigate the upconversion quantum yield of v-NaYF4:Er3+ under broadband excitation both experimentally and theoretically. The upconversion quantum yield strongly depends on the erbium concentration, and shows a maximum for an erbium concentration of 25%.enSolarzellen - Entwicklung und CharakterisierungSilicium-PhotovoltaikFarbstoffOrganische und Neuartige SolarzellenAlternative Photovoltaik-TechnologienPhotonenmanagementIndustrielle und neuartige SolarzellenstrukturenNeuartige Konzepte621697Absolute Upconversion Quantum Yield of ß-NaYF4 Doped with Er³+ and External Quantum Efficiency of Solar Cell Upconverter Devices under Broad-Band Excitation considering Spectral Mismatch Correctionsconference paper