Preparation of VO2 nanowires and their electric characterization

被引：63
作者：
Wu, XC [1 ]
Tao, YR
Lin, D
Wang, ZH
Zheng, H
机构：
[1] Nanjing Univ, State Key Lab Coordinat Chem, Lab Mesoscop Mat Sci, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 02期
关键词：
nanostructures; X-ray diffraction; electrical properties;
D O I：
10.1016/j.materresbull.2004.10.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Large-scale VO2 nanowires have been synthesized by two-step method. First, we have been obtained (NH4)(0.5)V2O5 nanowire precursors by hydrothermal treatment of ammonium metavanadate solution at 170 degreesC. Secondly, the precursors have been sealed in quartz tube in vacuum and annealed to form VO2 nanowires at 570 degreesC. Scanning electron microscope and transmission electron microscope analysis show, that the nanowires have self-assembling nanostructure with the diameter of about 80-200 nm, length up to125 mum. Electrical transport, measurements show that it is semiconductor with conduction activate energy of 0.128 eV. A metal semiconductor transition can be observed around 341 K. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：315 / 321
页数：7
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