Facile template-free sonochemical fabrication of hollow ZnO spherical structures

被引：42

作者：

Deng, Chonghai ^{[2
]}

Hu, Hanmei ^{[1
]}

Shao, Guoquan ^{[2
]}

Han, Chengliang ^{[2
]}

机构：

[1] Anhui Univ Architecture, Coll Mat & Chem Engn, Hefei 230022, Peoples R China

[2] Hefei Univ, Dept Chem & Mat Engn, Hefei 230022, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Zinc oxide; Nanostructures; Semiconductors; Optical properties; TEMPERATURE; GROWTH; NANOSTRUCTURES; MICROSPHERES; SPHERES; ROUTE; SIZE;

D O I：

10.1016/j.matlet.2010.01.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO hollow spherical structures have been synthesized by a facile template-free sonochemical process. The structures and morphologies of products have been characterized by XRD, FESEM and TEM. The results reveal that hollow spherical structures possess a hexagonal wurtzite structure with the in- and out-diameters of about 400 and 500 nm, respectively. The walls of the hollow structures are self-assembled by nanoparticles, partly composed of hexagonal nanoflakes with 40 nm in side lengths. Room temperature photoluminescence (PL) spectrum showed a UV emission at 384 nm and a broad green emission at the center of 535 nm. A possible formation mechanism was also proposed. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：852 / 855

页数：4

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