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

作者：Xia X H^*; Tu J P; Zhang J; Wang X L; Zhang W K; Huang H

来源：Nanotechnology, 2008, 19(46): 465701.

DOI：10.1088/0957-4484/19/46/465701

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 LiClO(4) + 1 mM HClO(4)/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.

• 出版日期2008-11-19
• 单位浙江工业大学; 浙江大学