Infrared quantum cutting conversion luminescence of Tb(0.7)Yb(3):FOV |
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| Authors: | Chen Xiao-Bo Kang Dong-Guo Li Song Wen Lei Yu Chun-Lei Hu Li-Li and Zhou Jing |
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| Institution: | Nuclear Science & Technology College and Analytical Testing Center, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China; Beijing Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | The infrared quantum cutting of oxyfluoride nanophase vitroceramics Tb(0.7)Yb(3):FOV has been studied in the present paper. The actual quantum cutting efficiency formula calculated from integral fluorescence intensity is extended to the case of Tb(0.7)Yb(3):FOV. The visible and the infrared fluorescence spectra and their integral fluorescence intensities are measured from static fluorescence experiment. Lifetime curve is measured from dynamic fluorescence experiment. It is found that the total actual quantum cutting efficiency η of the excited 5D4 level is about 93.7%, and that of excited (5D3, 5G6) levels is 93.5%. It is also found that the total theoretical quantum cutting efficiency upper limit ηx%Yb of the 485.5 nm excited <5D4 level is about 121.7%, and that of 378.5 nm excited (5D3, 5G6) levels is 137.2%. |
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| Keywords: | infrared quantum cutting solar cell oxyfluoride nanophase vitroceramics Tb(0 7)Yb(3):FOV |
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