Ag/WO_3纳米复合膜的制备及其电致变色性质和器件的研究  

Preparation and Electrochromic Properties of Ag/WO_3 Composite Thin Film and Application to an Electrochromic Device

作　　者：庞月红[1] 黎小宇[1] 赵婷[1] 施国跃[1] 金利通[1] 

机构地区：[1]华东师范大学化学系,上海200062

出　　处：《化学学报》2008年第21期2360-2364,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(No.20575021)资助项目

摘　　要：通过真空镀膜方法制备的纳米Ag薄膜均匀致密,表面光滑.然后通过电化学方法在Ag纳米薄膜上沉积一层三氧化钨(WO3),制备纳米Ag/WO3复合膜.并在此基础上构筑五层式玻璃/ITO/纳米Ag-WO3复合膜/固态电解质/聚(3-甲基噻吩)/ITO/玻璃电致变色器件.实验结果表明,与传统的WO3膜相比,纳米Ag/WO3复合膜具有更好的电化学活性、更高的对比度、更短的响应时间,以及更好的稳定性.由该复合膜组装的电致变色器件工艺简单,电致变色性能良好.An Ag nanoparticle film, which was fabricated by a vacuum deposition method from high purity Ag wire onto cleaned ITO, was uniform and smooth. An Ag/WO3 composite film was prepared by cathodic electrodeposition of WO3 onto the surface of the Ag nanoparticle film. Moreover, an Ag/WO3 nanocompo- site film based 5-layer electrochromic device （glass/ITO/Ag-WO3 nanocomposite film/solid electrolyte/poly（3-methythiophene）/ITO/glass） was constructed and its electrochromic properties were also inves- tigated in this paper. In comparison with a single component system （WO3）, a substantial enhancement in the electrochromic performance for the Ag embedded WO3 composite system was clearly observed. The method of constructing this electrochromic device was simple and its electrochromic properties appeared Rood.

关 键 词：Ag/WO3纳米复合膜 聚3-烷基噻吩(PMeT) 离子液体[BMIM]PF6 电致变色器件(ECD) 

分 类 号：TB383.2[一般工业技术—材料科学与工程]