Shape-dependent thermochromic phenomenon in porous nanostructured VO2 films

被引：15
|
作者：
Xu, Yuanjie [1 ]
Huang, Wanxia [1 ]
Shi, Qiwu [1 ]
Zhang, Yubo [1 ]
Wu, Jing [1 ]
Song, Linwei [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Sichuan, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 10期
基金：
美国国家科学基金会;
关键词：
Crystal growth; Microporous materials; Nanostructures; Sol-gel chemistry; Thin film; VANADIUM DIOXIDE FILMS; METAL PHASE-TRANSITION; PARAMETERS; SEMICONDUCTOR;
D O I：
10.1016/j.materresbull.2013.06.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we report the preparation of thermochromic porous nano-structured VO2 films. The films with sphere-shaped, stone-shaped, and rod-shaped particles were derived from a sol-gel process with inorganic precursor and polyethylene glycol (PEG). The obtained porous nano-structured VO2 films show tiny particles (about 20 nm), excellent optical property (light switching efficiency of 67%), and controlled hysteresis loop features (width and slope). The films can be obtained by simply controlling the N-2 flow rate during annealing process, providing an effective process for growing high quality thermochromic porous nano-structured VO2 films with controllable hysteresis features, which is of great importance in achieving practical application. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4146 / 4149
页数：4
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