Near-infrared luminescence enhancing by introducing alkali metal ions in Sr2CeO4:Yb3+

被引：15

作者：

Xiao, Quanlan

Dong, Guoping ^{[1
]}

Qiu, Jianrong

机构：

[1] S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 147卷

关键词：

Near-infrared luminescence; Sr2CeO4:Yb3+; Alkali metal cations; Spectrum conversion; SOL-GEL; PHOSPHOR; ENERGY; EU3+; PHOTOLUMINESCENCE; GAP; ZN; MG; TM; LN;

D O I：

10.1016/j.jlumin.2013.11.005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

NIR luminescence phosphors Sr2CeO4:Yb3+, M+ (M+ =Li+, Na+, K+) were synthesized by conventional solid-state method in the present paper. The prepared phosphors are characterized by XRD and fluorescence spectrometer. Under UV light excitation, the NIR emission intensity of Yb3+:F-2(5/2)-> F-2(7/2) around 1 mu m of Sr2CeO4:Yb3+ is strengthened significantly by introducing appropriate alkali metal cations dopants (Li+, Na+, K+) into the crystalline lattice. The relevant mechanisms have been discussed in detail. The peculiar optical properties make Sr2CeO4:Yb3+, M+ (M =Li+, Na+, K+) promising for potential application in the high efficiency silicon-based solar cells. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：163 / 167

页数：5

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