A highly porous NiO/polyaniline composite film prepared by combining chemical bath deposition and electro-polymerization and its electrochromic performance

被引：82
|
作者：
Xia, X. H. [1 ]
Tu, J. P. [1 ]
Zhang, J. [1 ]
Wang, X. L. [1 ]
Zhang, W. K. [2 ]
Huang, H. [2 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310032, Zhejiang, Peoples R China
来源：
NANOTECHNOLOGY | 2008年 / 19卷 / 46期
关键词：
D O I：
10.1088/0957-4484/19/46/465701
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A highly porous NiO/polyaniline (PANI) composite film was prepared on ITO glass by combining the chemical bath deposition and electro-polymerization methods, successively. The porous NiO film acts as a template for the preferential growth of PANI along NiO flakes, and the NiO/PANI composite film has an intercrossing net-like morphology. The electrochromic performance of the NiO/PANI composite film was investigated in 1 M LiClO4 + 1 mM HClO4/propylene carbonate ( PC) by means of transmittance, cyclic voltammetry ( CV) and chronoamperometry ( CA) measurements. The NiO/PANI thin film exhibits a noticeable electrochromism with reversible color changes from transparent yellow to purple and presents quite good transmittance modulation with a variation of transmittance up to 56% at 550 nm. The porous NiO/polyaniline ( PANI) composite film also shows good reaction kinetics with fast switching speed, and the response time for oxidation and reduction is 90 and 110 ms, respectively.
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页数：7
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