Efficient near-infrared down-conversion in KCaGd(PO4)2:Ce3+, Yb3+

被引：21

作者：

Zhao, Lei ^{[1
]}

Han, Lili ^{[1
]}

Wang, Yuhua ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Mat Sci, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2014年 / 4卷 / 07期

基金：

美国国家科学基金会;

关键词：

ENERGY-TRANSFER; QUANTUM; LUMINESCENCE; TM; TB; PERFORMANCE; PHOSPHORS; RE; EU; CE;

D O I：

10.1364/OME.4.001456

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel near-infrared (NIR) quantum cutting KCaGd(PO4)(2):Ce3+,Yb3+ phosphor was successfully developed. Due to the cooperative energy transfer from one Ce3+ to two Yb3+, an intense NIR emission around 1021 nm of Yb3+:F-2(5/2)-F-2(7/2) transition was obtained under 324 nm excitation. Yb3+ concentration dependent quantum efficiency has been calculated and the theoretical maximum efficiency approaches up to 158.2%. Because the emission of Yb3+ around 1021 nm is matched with the band gap of crystalline Si, the phosphors could be a potential candidate for silicon-based solar cells. (C) 2014 Optical Society of America

引用

页码：1456 / 1464

页数：9

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