In situ chemical coprecipatation composition of hybrid precursors to red YVO4:Eu3+ and green LaPO4:Tb3+ phosphors

被引：39
|
作者：
Yan, B [1 ]
Su, XQ [1 ]
Zhou, K [1 ]
机构：
[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2006年 / 41卷 / 01期
基金：
中国国家自然科学基金;
关键词：
optical materials; chemical synthesis; luminescence;
D O I：
10.1016/j.materresbull.2005.07.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a modified in situ chemical coprecipitation technology with hybrid precursors was put forward and achieved the synthesis of YVO4:Eu3+ and LaPO4:Tb3+ phosphors. Rare earth coordination polymers with salicylic acid were used as precursors and composing with the polyvinyl alcohol (PVA) as dispersing media. Their microstructure and micromorphology have been analyzed by X-ray powder diffraction (XRD) and scanning electronic microscope (SEM), whose particle size was determined to be around 100-400 nm. Both YVO4:Eu3+ and LaPO4:Tb3+ exhibit the corresponding characteristic luminescence of Eu3+ and Tb3+ and concentration quenching effect takes place. The results suggest it is a candidate technology for the synthesis of rare earth vanadate and phosphate phosphors. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：134 / 143
页数：10
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