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氧化镍薄膜在含Li+电解质中的电致变色特性

吴永刚; 吴广明; 倪星元; 周箴; 张慧琴; 吴翔   

  1. 同济大学波耳固体物理研究所; 上海 200092
  • 收稿日期:1998-05-15 修回日期:1998-07-14 出版日期:1999-04-20 网络出版日期:1999-04-20

Electrochromic Characteristics of Nickel Oxide Film in Li+ Containing Electrolyte

WU Yong-Gang; WU Guang-Ming; NI Xing-Yuan; ZHOU Zhen; ZHANG Hut-Qin; WU Xiang   

  1. Pohl Institute Solid State Physics; Tongji University Shanghai 200092 China
  • Received:1998-05-15 Revised:1998-07-14 Published:1999-04-20 Online:1999-04-20

摘要: 本文中研究了非严格去水条件下氧化镍薄膜的电化学循环和电致变色特性.以恒电流方式向薄膜中注入和抽取Li+离子,分析了光密度变化与注入和抽取离子数量的关系,用俄歇电子能谱(AES)定量分析了注人Li+离子的深度分布.测试了薄膜在原始、致色和消色态的透射率光谱和薄膜的电流和透射率变化的时间响应,以及在开路状态下薄膜在LiClO4-PC电解液环境中的稳定性.研究了氧化镍薄膜在含有一定水杂质的LiClO4-PC电解液中的电化学循环和电致变色特性与电解质中微量水份含量的关系.发现当电解质及周围环境中含有微量水份时,对薄膜的注入电荷数量和透射率变化范围均不存在大的影响.

关键词: 电致变色, 氧化镍薄膜, 含Li+电解质

Abstract: Electrochromic characteristics of nickel oxide film in Li+ containing electrolyte under nonstrict anhydrous conditions
were studied, the amount of injected Li+ ions was analysed quantitatively with Auger electron spectrum, the property of Li+ injection of the film
was studied with galvanostatic method, the voltammogamm properties and the stability of the film in Li+ contaning electrolyte were also studied.
Particularly, the influence of water impurities in the electrolyte on the voltommogamm and the electrochromic characteristics of the film was studied
and the results show that when the water impurities are less than 5%, the injected charge and transmittance modulation range are nearly unaffected.

Key words: electrochromic, nickel oxide film, Li+ containing electrolyte

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