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应用科学学报 ›› 1997, Vol. 15 ›› Issue (3): 285-290.

• 论文 • 上一篇    下一篇

V2O5薄膜电致色特性研究

吴广明, 吴永刚, 倪星元, 周箴, 张慧琴, 金哲民, 吴翔   

  1. 同济大学
  • 收稿日期:1996-01-02 修回日期:1996-03-20 出版日期:1997-09-30 发布日期:1997-09-30
  • 作者简介:吴广明:讲师,同济大学波耳固体物理研究所,上海 200092

ELECTROCHROMIC PROPERTIES OF V2O5 THIN FILMS

WU GUANGMING, WU YONGGANG, NI XINGYUAN, ZHOU ZHEN, ZHANG HUIQING, JIN ZHEMIN, WU XIANG   

  1. Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
  • Received:1996-01-02 Revised:1996-03-20 Online:1997-09-30 Published:1997-09-30

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摘要： 采用热蒸发经热处理制备了V2O5薄膜.XRD分析表明薄膜为非晶和微晶结构.采用电化学方法从电解质向V2O5薄膜注入Li离子形成LixV2O5(O<x<0.35).使用三电极法研究了其电化学和电教色特性,分析了电化学循环过程中氧化、还原电流峰形成的机理、LixV2O5结构的变化以及其与光学性质的关系,给出了V2O5薄膜阴阳电致色的致色效率.

关键词: 电致色, 薄膜, V2O5, 电化学

Abstract: Electrochromic and electrochemical properties of V2O5 thin films prepared by evaporation followed by annealing posttreatment are studied. Lithium is inserted elec-trochemically from an electrolyte so that LixV2O5 (O<x<0. 35) is formed. The XRD analyses show that V2O5 thin films are cornposed of amorphous (postannealed at tempe-rature <500℃) and microcrystalline (postannealed at 500℃) structures, respectively.The formation mechanism of redox current peaks, the evolution of LixV2O5 structures and the relation between the evolution and optical properties during Li intercalation are analyzed. Electrochromic coefficient of cathodic and anodic electrochromic V2O5 thin films have been calculated.

Key words: thin film, electrochemistry, V2O5, electrochromism