Near ultraviolet and visible-to-near-infrared spectral converting properties and energy transfer mechanism of Sr2SiO4:Ce3+, Pr3+ phosphor

被引：16
|
作者：
Li, Ye [1 ]
Yu, Qiuling [1 ]
Huang, Lin [1 ]
Wang, Jing [1 ]
Su, Qiang [1 ]
机构：
[1] Sun Yat Sen Univ, Key Lab Bioinorgan & Synthet Chem, State Key Lab Optoelect Mat & Technol,Minist Educ, KLGHEI Environm & Energy Chem,Sch Chem & Chem Eng, Guangzhou 510275, Guangdong, Peoples R China
来源：
OPTICAL MATERIALS EXPRESS | 2014年 / 4卷 / 02期
基金：
中国国家自然科学基金;
关键词：
DOWNCONVERSION; IONS;
D O I：
10.1364/OME.4.000227
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A visible-to-near-infrared spectral converting phosphor Ce3+, Pr3+ co-doped Sr2SiO4 was synthesized by a solid-state reaction, and was developed as a potential solar spectral convertor for Si solar cells. The diffuse reflection, photoluminescence excitation and emission spectra at room temperature and at 3K were investigated. The visible and near infrared luminescent properties and energy levels of Pr3+ were investigated in detail. These results demonstrate that the absorption of Pr3+ was greatly broaden and enhanced in UV-Vis through efficient energy feeding by allowed 4f-5d absorption of Ce3+. The energy transfer mechanism including downshift and quantum cutting process is also proposed. (C) 2014 Optical Society of America
引用
收藏
页码：227 / 233
页数：7
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