Light emitting properties of SiAlON:Eu2+ green phosphor

被引：29

作者：

Kim, Do-Hwan ^{[2
]}

Ryu, Jeong Ho ^{[1
]}

Cho, Sung-Yong ^{[2
]}

机构：

[1] Korean Assoc Crystal Growth Inc, Seoul 133600, South Korea

[2] Chonnam Natl Univ, Dept Environm Engn, Kwangju 500757, South Korea

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2011年 / 102卷 / 01期

关键词：

CA-ALPHA-SIALON; LUMINESCENCE PROPERTIES; EU2+;

D O I：

10.1007/s00339-010-6126-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SiAlON:Eu2+ green phosphor was successfully synthesized by solid-state synthesis for application to white-LED. The phase development, microstructure, photoluminescence and thermal quenching properties were investigated in detail. The prepared SiAlON:Eu2+ green phosphor had a rod-like morphology with a uniform particle distribution in length. The SiAlON:Eu2+ green phosphor absorbed a broad UV-Vis spectral region and showed a single intense broadband emission near 540 nm. The prepared SiAlON:Eu2+ green phosphor showed superior thermal quenching properties compared to silicate green phosphor. The light emitting properties of white-LED prepared by SiAlON:Eu2+ as green phosphor was investigated. The white-LED using the prepared SiAlON:Eu2+ green phosphor exhibited good optical stability in high driving currents compared to silicate phosphor.

引用

页码：79 / 83

页数：5

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