发光学报Issue(3)：262-266,5.DOI:10.3788/fgxb20153603.0262
YAG中Cr3+和Yb3+的发光特征以及Cr3+和Yb3+之间的能量传递过程
Properties of NIR Emissions with Energy-transfer Processes in Cr3+-and Yb3+-doped Y3 Al5 O12 Powder Materials
摘要
Abstract
Cr3+-and Yb3+-doped YAG powder samples were prepared and the energy transfer ( ET) mechanism in the samples was evaluated by the photoluminescence ( PL) , photoluminescence exci-tation ( PLE) and light-emitting lifetime. By taking advantage of the spin allowed 4 A2→ 4 T2 and 4 A2→ 4 T1 absorption of Cr3+ and the efficient energy transfer from Cr3+ to Yb3+, the broadband spectral conversion makes Yb3+:2 F5/2→2 F7/2 transition give off a desirable emission around 1 000 nm, which is according to the maximum spectral response of c-Si solar cells, and hence would lead to the enhancement of silicon solar photovoltaic conversion efficiency.关键词
Cr3+/Yb3+/近红外发光/能量传递Key words
Cr3+/Yb3+/NIR emission/energy transfer分类
数理科学引用本文复制引用
张继森,张立国,任建岳,段佩华,骆永石,吕少哲..YAG中Cr3+和Yb3+的发光特征以及Cr3+和Yb3+之间的能量传递过程[J].发光学报,2015,(3):262-266,5.基金项目
国家自然科学基金(11174276,11174278)资助项目 （11174276,11174278）
