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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.; Fröhlich, B.; Steinkemper, H.; Krämer, K.W.; Goldschmidt, J.C.

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Optical Society of America -OSA-, Washington/D.C.:
Optical Nanostructures and Advanced Materials for Photovoltaics : Eindhoven Netherlands November 11-14, 2012
2012
ISBN: 978-1-55752-952-7
Paper PW2B.4
Conference "Optical Nanostructures and Advanced Materials for Photovoltaics - Spectral Conversion" <2012, Eindhoven>
English
Conference Paper
Fraunhofer ISE ()
Solarzellen - Entwicklung und Charakterisierung; Silicium-Photovoltaik; Farbstoff; Organische und Neuartige Solarzellen; Alternative Photovoltaik-Technologien; Photonenmanagement; Industrielle und neuartige Solarzellenstrukturen; Neuartige Konzepte

Abstract
We investigate the upconversion quantum yield of β-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%.

: http://publica.fraunhofer.de/documents/N-315486.html