Large-scale preparation of ZnO nanoflowers from nanowires with high length/diameter ratio

被引：1

作者：

Luo, Caiqin ^{[1
]}

Wang, Zhenkun ^{[1
]}

Ma, Chuansheng ^{[1
]}

Liu, Qingfang ^{[1
]}

Wang, Jianbo ^{[1
]}

机构：

[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Inst Appl Magnet, Lanzhou 730000, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 84卷

关键词：

Deposition; Semiconductors; Microstructure; LOW-TEMPERATURE GROWTH;

D O I：

10.1016/j.matlet.2012.06.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO nanoflowers were successfully prepared by a new non-catalytic method based on directly heating of Zn strip using a direct current power supply. The Zn strip was obtained by electrodeposition on silicon wafer with laser etching. The nanoflowers, with a size more than 15 mu m, are assembled by nanowires with a length of 10 mu m and a diameter of 100 nm, and the length/diameter ratio is about 100. The samples were characterized by means of scanning electron microscope, X-ray diffraction and Raman. X-ray diffraction results show that the formation of nanoflowers is controlled by the current density. Raman modes of nanoflower corresponds well with X-ray diffraction result. Photoluminescence property of ZnO nanoflowers shows strong green emission and violet emission. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：66 / 68

页数：3

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