Optimizing Er/Yb ratio and content in Er-Yb co-doped glass-ceramics for enhancement of the up- and down-conversion luminescence

被引：90
|
作者：
Tikhomirov, V. K. [1 ]
Rodriguez, V. D. [2 ]
Mendez-Ramos, J. [2 ]
del-Castillo, J. [2 ]
Kirilenko, D. [3 ]
Van Tendeloo, G. [3 ]
Moshchalkov, V. V. [1 ]
机构：
[1] Katholieke Univ Leuven, INPAC Inst Nanoscale Phys & Chem, B-3000 Louvain, Belgium
[2] Univ La Laguna, Dept Fis Fundamental & Expt Elect & Sistemas, Tenerife, Spain
[3] Univ Antwerp, EMAT Elect Microscopy Mat Sci, Antwerp, Belgium
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 100卷
关键词：
Down-conversion of solar spectrum; Quantum cutting; Transparent glass-ceramics; Enhanced solar cells; Photoluminescence of rare-earths; UP-CONVERSION; SOLAR-CELLS; EFFICIENCY;
D O I：
10.1016/j.solmat.2012.01.019
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Er3+-Yb3+ co-doped transparent glass-ceramics with varying Er/Yb content and ratio have been prepared. High quantum yields for up- and down-conversion luminescence by energy transfer from Yb3+ to Er3+ and from Er3+ to Yb3+, respectively, have been detected and optimized with respect to the Er/Yb content and ratio, and proposed in particular for up- and down-conversion of solar spectrum for enhancement of the efficiency of solar cells. The rise and decay kinetics for the population of the excited levels of Er3+ and Yb3+ have been studied and fit. Based on these experimental data, the mechanisms for the energy transfers have been suggested with emphasis on the optimized Er/Yb content and ratio for enhancement of the efficiency of the Er3+<< Yb3+ energy transfers. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：209 / 215
页数：7
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