LiSr4(BO3)3:Eu2+橙色发光荧光粉发光的热猝灭

Thermal quenching of luminescence of LiSr4 (BO3)3:Eu2+ orange-emitting phosphor.

作者信息

Zhang Xinguo, Zhou Liya, Gong Menglian

机构信息

Ministry-Province Jointly Constructed Cultivation Base for State Key Laboratory for Processing Non-Ferrous Metal and Featured Materials, Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, 530004, China; School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.

出版信息

Luminescence. 2014 Mar;29(2):104-8. doi: 10.1002/bio.2511. Epub 2013 Apr 30.

DOI:10.1002/bio.2511

PMID:23630083

Abstract

An orange-emitting phosphor, Eu(2+)-activated LiSr4(BO3)3, was synthesized using the conventional solid-state reaction. The photoluminescence excitation and emission spectra, and temperature dependence of the luminescence intensity of the phosphor were investigated. The results showed that LiSr4(BO3)3:Eu(2+) could be efficiently excited by incident light of 250-450 nm, and emits a strong orange light. With increasing temperature, the emission bands of LiSr4(BO3)3:Eu(2+) show an abnormal blue-shift with broadening bandwidth and decreasing emission intensity.

摘要

采用传统固相反应法合成了一种发红光的荧光粉Eu(2+)激活的LiSr4(BO3)3。研究了该荧光粉的光致发光激发光谱和发射光谱以及发光强度的温度依赖性。结果表明，LiSr4(BO3)3:Eu(2+)能被250 - 450 nm的入射光有效激发，并发出强烈的橙光。随着温度升高，LiSr4(BO3)3:Eu(2+)的发射带呈现异常蓝移，带宽变宽，发射强度降低。