Optimization of VUV characteristics and morphology of BaMgAl10O17:Eu2+ phosphor particles in spray pyrolysis

被引:26
作者
Kang, YC
Roh, HS
Park, HD
Park, SB
机构
[1] Korea Res Inst Chem Technol, Adv Mat Div, Yusong Gu, Taejon 305600, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Chem Biomol Engn, Yusong Gu, Taejon 305701, South Korea
关键词
powders : gas phase reaction; precursors; optical properties;
D O I
10.1016/S0272-8842(02)00087-1
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The VUV characteristics of BaMgAl10O17:Eu2+ Phosphor particles prepared by an ultrasonic spray pyrolysis were compared with those of commercial product. The precursor effect on the morphology and brightness of phosphor particles was investigated in spray pyrolysis. The phosphor particles were prepared from 24 combinations of barium, magnesium, and aluminum component precursors composing host material. The precursor types strongly affected the morphology and luminescence characteristics of BAM phosphor particles. The BAM phosphor particles posttreated at above 1250 degreesC had higher brightness than that of commercial product. The maximum brightness of particles obtained at 1350 degreesC from nitrate precursors was 109% that of commercial product. This optimum posttreatment temperature in spray pyrolysis is lower than that of conventional solid-state reaction method. (C) 2002 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
引用
收藏
页码:41 / 47
页数:7
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