Preparation and luminescence characteristics of Sr3SiO5:Eu2+ phosphor for white LED

被引：35

作者：

Li PanLai ^{[1
]}

Yang ZhiPing ^{[1
]}

Wang ZhiJun ^{[1
]}

Guo QingLin ^{[1
]}

Li Xu ^{[1
]}

机构：

[1] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2008年 / 53卷 / 07期

关键词：

white LED; Sr3SiO5 : Eu2+; luminescence characteristics;

D O I：

10.1007/s11434-008-0044-8

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Sr3SiO5:Eu2+ phosphor was synthesized by high temperature solid-state reaction. The emission spectrum of Sr3SiO5:Eu2+ shows two bands centered at 487 and 575 nm, which well agree with the theoretic values of emission spectrum. The excitation spectrum for 575 nm emission center has several excitation bands at 365, 418, 458 and 473 nm. And the results show that the emission spectrum of Sr3SiO5:Eu2+ is influenced by the Eu2+ concentration. The relative emission spectra of the white-emitting InGaN-based YAG:Ce3+ LED and Sr3SiO5:Eu2+ LED were investigated. The results show that the color development of InGaN-based Sr3SiO5:Eu2+ is better than that of InGaN-based YAG:Ce-3+,Ce- and the CIE chromaticity of InGaN-based Sr3SiO5:Eu2+ is (x=0.348, y=0.326).

引用

页码：974 / 977

页数：4

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