Complete UV emission of ZnO nanoparticles in a PMMA matrix

被引：78

作者：

Du, Xi-Wen ^{[1
]}

Fu, Ying-Song

Sun, Jing

Han, Xue

Liu, Jim

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

[2] Motorola China Elect Ltd, PRRC Asia, Tianjin 300457, Peoples R China

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 2006年 / 21卷 / 08期

关键词：

D O I：

10.1088/0268-1242/21/8/037

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Preparation and photoluminescence ( PL) properties of zinc oxide ( ZnO) nanoparticles embedded in a lipophilic polymethyl methacrylate ( PMMA) matrix are reported in detail with an unbalanced sol - gel route. A high-resolution transmission electron microscope ( HRTEM) indicates that ZnO particles are highly crystallized, with a size of 5 - 6 nm and hexagonal wurtzite structure. During the sol - gel reaction, partial ester groups of R-COOCH3 in PMMA are hydrolyzed to form carboxylic ion groups, which chemisorb on the surface of ZnO nanoparticles to eliminate the defects; thus ZnO nanoparticles in the PMMA matrix exhibit complete ultraviolet ( UV) emissions, while emissions in the visible region are fully quenched.

引用

页码：1202 / 1206

页数：5

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