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%.
© 2012 OSA
B. Fröhlich, S. Fischer, H. Steinkemper, J. C. Goldschmidt, and K. Krämer, "Absolute Upconversion Quantum Yield of β-NaYF4:Er3+ under Broadband Excitation in Dependence on the Erbium Concentration - Measurements and Simulations," in Renewable Energy and the Environment Optics and Photonics Congress, OSA Technical Digest (online) (Optical Society of America, 2012), paper PW2B.4.
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