Near-infrared quantum cutting in Ce3+, Yb3+ co-doped YBO3 phosphors by cooperative energy transfer

被引：105

作者：

Chen, JinDeng ^{[1
]}

Guo, Hai ^{[1
,2
]}

Li, ZhengQuan ^{[1
]}

Zhang, Hao ^{[1
]}

Zhuang, YiXi ^{[2
]}

机构：

[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China

[2] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

OPTICAL MATERIALS | 2010年 / 32卷 / 09期

关键词：

Quantum cutting; Cooperative energy transfer; Downconversion; Ce3+; Yb3+ co-doped YBO3; DOWN-CONVERSION; DOWNCONVERSION;

D O I：

10.1016/j.optmat.2010.01.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An efficient near-infrared (NIR) quantum cutting (QC) in Ce3+, Yb3+ co-doped YBO3 phosphors has been demonstrated, which involves the emission of two low-energy NIR photons (around 973 nm) from an absorbed ultra-violet (UV) photon at 358 nm via a cooperative energy transfer (CET) from Ce3+ to Yb3+ ions. Yb3+ concentration dependent quantum efficiency has been calculated and the maximum efficiency approaches up to 175% before reaching the critical concentration quenching threshold. The development of NIR QC Ce3+, Yb3+ co-doped phosphors may open up a new approach to achieve high efficiency silicon-based solar cells by means of downconversion. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：998 / 1001

页数：4

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