Field emission from V2O5•nH2O nanorod Arrays

被引：31
|
作者：
Chen, Wen [1 ]
Zhou, Chiwei [1 ]
Mai, Liqiang [1 ]
Liu, Yueli [1 ]
Qi, Yanyuan [1 ]
Dai, Ying [1 ]
机构：
[1] Wuhan Univ Technol, Inst Mat Sci & Engn, State Key Lab Adv Technol Mat Synthesis & Proc, Wuhan 430070, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 07期
关键词：
D O I：
10.1021/jp0766151
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：
Hydrated vanadium pentoxide (V2O5 center dot nH(2)O) nanorod arrays with diameters of similar to 200 nm and lengths of more than 5 mu m have been synthesized via template-based physical wetting of V2O5 sols. The V2O5 center dot nH(2)O nanorod arrays were characterized by scanning electron microscopy, X-ray diffraction, and high-resolution transmission electron microscopy. Field-emission (FE) measurements on the V2O5 center dot nH(2)O nanorod arrays show low turn on voltages of 6-8 V/mu m and linear Fowler-Nordheim behaviors. The morphologies and natures of the V2O5 center dot nH(2)O samples are assumed to cause such good FE performances.
引用
收藏
页码：2262 / 2265
页数：4
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