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

页码：209 / 215

页数：7

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