Preparation of Eu-doped Y2O3 luminescent nanoparticles in nonionic reverse microemulsions

被引：88

作者：

Lee, MH

Oh, SG

Yi, SC

机构：

[1] Hanyang Univ, Dept Chem Engn, Seogdong Gu, Seoul 133791, South Korea

[2] Hanyang Univ, CPRC, Seogdong Gu, Seoul 133791, South Korea

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2000年 / 226卷 / 01期

关键词：

nanoparticle; Y2O3; Eu; microemulsion; photoluminescence; crystallinity;

D O I：

10.1006/jcis.2000.6811

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：

In this study, Y2O3 : Eu luminescent nanoparticles were prepared by precipitation of aqueous yttrium nitrate/europium nitrate solution using ammonium hydroxide in the reverse microemulsions based on polyoxyethylene (5) nonylphenyl ether/polyoxyethylene (9) nonylphenyl ether, cyclohexane, and water. With Eu-doped Y2O3 nanoparticles obtained, particle size, shape, chemical composition, crystalline formation rate, crystallinity, and photoluminescence were measured and compared with those of particles formed by a bulk precipitation method. The nanoparticles synthesized in microemulsion showed a narrow size distribution, spherical shape, fast crystalline formation rate, high crystallinity, and strong photoluminescence. This stronger photoluminescence of particles formed in a microemulsion might be attributed to more densely packed particles with very few voids and higher crystallinity at a relatively low temperature than those synthesized through a bulk precipitation method. (C) 2000 Academic Press.

引用

页码：65 / 70

页数：6

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