ZnO flowers made up of thin nanosheets and their optical properties

被引：136

作者：

Pan, AL ^{[1
]}

Yu, RC ^{[1
]}

Xie, SS ^{[1
]}

Zhang, ZB ^{[1
]}

Jin, CQ ^{[1
]}

Zou, BS ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Nanoscale Phys & Device Lab, Beijing 100080, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2005年 / 282卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

crystal morphology; growth from solutions; nanostructure; ZnO;

D O I：

10.1016/j.jcrysgro.2005.05.003

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A new type of flower-like ZnO nanostructure was prepared on a large scale through a very simple solvothermal method. The nanoflowers are assembled by many thin and uniform hexagonal-structured ZnO nanosheets, with a thickness of around 6 nm. The growth mechanism of the nanoflowers is discussed based on the reaction conditions. Room-temperature optical measurements reveal that such ZnO nanoflowers have very strong UV bandedge emission with a large Stokes shift and an asymmetrical band profile. This luminescence characteristic may be attributed to the anisotropic energy band structure of the quantum-confined ZnO nanosheets. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：165 / 172

页数：8

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