Synthesis of high-brightness sub-micrometer Y2O2S red phosphor powders by complex homogeneous precipitation method

被引：50
作者：
Kawahara, Yoshiyuki
Petrykin, Valery
Ichihara, Takahashi
Kijima, Naoto
Kakihana, Masato
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan
[3] Kasei Optonix Ltd, Odawara, Kanagawa 2500862, Japan
[4] Mitsubishi Chem Grp Sci & Technol Res Ctr Inc, Aoba Ku, Yokohama, Kanagawa 2278502, Japan
来源：
CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 26期
关键词：
D O I：
10.1021/cm060609k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
High-brightness Y2O2S red phosphor powders with sub-micrometer particle size were prepared by complex homogeneous precipitation method employing hydrolysis of urea in water solutions of various diols. Sulfurization was carried out by annealing of the obtained powders at 700-1200 degrees C in the presence of Na2CO3-S mixture. Despite the small particle size, the luminescence intensity for most of the samples was comparable with one of the best available commercial Y2O2S phosphors, while Y2O2S samples doped with Eu and a small amount of Tb were superior to the commercial reference.
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页码：6303 / 6307
页数：5
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