Near infrared quantum cutting in heavy Yb doped Ce0.03Yb3xY(2.97-3x)Al5O12 transparent ceramics for crystalline silicon solar cells

被引：69
作者：
Lin, Hui [1 ]
Zhou, Shengming [1 ]
Teng, Hao [1 ]
Li, Yukun [1 ]
Li, Wenjie [1 ]
Hou, Xiaorui [1 ]
Jia, Tingting [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 04期
基金：
中国国家自然科学基金;
关键词：
aluminium compounds; ceramics; cerium compounds; charge exchange; energy gap; photons; solar cells; ytterbium compounds; yttrium compounds; CONVERSION; LUMINESCENCE; PERFORMANCE; EFFICIENCY; EMISSION;
D O I：
10.1063/1.3298907
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Near infrared (NIR) quantum cutting involving the conversion of an absorbed blue photon into two NIR photons emission has been realized in heavy Yb doped Ce0.03Yb3xY(2.97-3x)Al5O12 (x=0.1, 0.25, and 0.5) transparent ceramics. Upon the 467 nm excitation, the energy transfer process was dominated by the cooperative downconversion from the 5d(1) state of one Ce3+ ion to the F-2(5/2) state of two Yb3+ ions. The influence of the Ce4+-Yb2+ charge transfer state (CTS) should not contribute much to the energy transfer process for the large energy gap between Ce3+:5d(1) and the CTS. The calculated quantum yield of Yb3+ for the x=0.25 sample without concentration quenching was 175.4%.
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页数：4
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