Homogeneous-catalytic synthesis of tetrapodlike ZnO nanocrystals and their photoluminescence properties

被引：24

作者：

Yu, WD ^{[1
]}

Li, XM ^{[1
]}

Gao, XD ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 390卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2004.04.032

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-quality tetrapodlike ZnO nanocrystals (T-ZnONCs) were synthesized on ZnO catalyzed Si substrate through a modified vapor transport process, in which zinc carbonates was used as a zinc source to yield supersaturated zinc vapor. The T-ZnONCs were self-assembled by a tetrahedral core and four cylindrical nanorods (arms) with the diameter of 60-80 nm. Three luminescence bands, namely UV band at 380 nm, violet band at 440 nm and green emission at 506 nm, were identified in their photo luminescence spectrum. The strengthened UV emission implied that the cylindrical (rather than needlelike) arms improved the lattice integrity of the T-ZnONCs. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：296 / 300

页数：5

共 29 条

[1] The octa-twin tetraleg ZnO nanostructures [J].