The Photoluminescence Characteristic of Ba2-xSrxSiO4:Eu2+ Phosphor Particles Prepared by Spray Pyrolysis

被引：0
|
作者：
Kang, Hee Sang [1 ]
Park, Seung Bin [1 ]
Koo, Hye Young [2 ]
Kang, Yun Chan [2 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Daejeon 305701, South Korea
[2] Konkuk Univ, Dept Chem Engn, 1 Hwayang Dong, Seoul 143701, South Korea
来源：
KOREAN CHEMICAL ENGINEERING RESEARCH | 2006年 / 44卷 / 06期
关键词：
Phosphor; Silicate; Spray Pyrolysis; LED;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Ba2-xSrxSiO4:Eu2+ phosphor particles with the high photoluminescence (PL) intensity under long wavelength ultraviolet (UV) were prepared by spray pyrolysis. The photoluminescence, morphological and crystalline characteristics of Ba2-xSrxSiO4:Eu2+ phosphor particles prepared by spray pyrolysis were investigated. Ba2-xSrxSiO4:Eu2+ phosphor particles prepared by spray pyrolysis had various colors from bluish green to yellow by changing the ratio of barium and strontium of the host material. In case of x=0, the main emission peak of Ba2SiO4:Eu2+ phosphor was 500 nm. In case of x=2, the main emission peak of Sr2SiO4:Eu2+ phosphor was 554nm. Ba2-xSrxSiO4:Eu2+ phosphor particles obtained by spray pyrolysis had spherical shape and hollow structure. On the other hand, the post-treated Ba2-xSrxSiO4:Eu2+ phosphor particles had large size and irregular shape. The Ba1.488Sr0.5SiO4:Eu-0.012(2+) phosphor particles had the maximum PL intensity after post-treatment at temperature of 1300 degrees C for 3h under reduction atmosphere.
引用
收藏
页码：609 / 613
页数：5
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