通过化学浴沉积和电聚合相结合制备的高度多孔氧化镍/聚苯胺复合薄膜及其电致变色性能。
A highly porous NiO/polyaniline composite film prepared by combining chemical bath deposition and electro-polymerization and its electrochromic performance.
作者信息
Xia X H, Tu J P, Zhang J, Wang X L, Zhang W K, Huang H
机构信息
Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China.
出版信息
Nanotechnology. 2008 Nov 19;19(46):465701. doi: 10.1088/0957-4484/19/46/465701. Epub 2008 Oct 22.
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.
通过依次结合化学浴沉积法和电聚合方法，在氧化铟锡（ITO）玻璃上制备了一种高度多孔的氧化镍/聚苯胺（PANI）复合薄膜。多孔氧化镍薄膜作为聚苯胺沿氧化镍薄片优先生长的模板，氧化镍/聚苯胺复合薄膜具有交叉网状形态。通过透射率、循环伏安法（CV）和计时电流法（CA）测量，研究了氧化镍/聚苯胺复合薄膜在1 M高氯酸锂（LiClO₄）+1 mM高氯酸（HClO₄）/碳酸丙烯酯（PC）中的电致变色性能。氧化镍/聚苯胺薄膜表现出明显的电致变色现象，颜色从透明黄色可逆地变为紫色，并且在550 nm处具有相当好的透射率调制，透射率变化高达56%。多孔氧化镍/聚苯胺（PANI）复合薄膜还显示出良好的反应动力学，具有快速的切换速度，氧化和还原的响应时间分别为90和110毫秒。
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