Abstract

In this study, the poly(3-methylthiophene) (PMeT) of the electrochromic thin films had been deposited on the zinc oxide nanowires/indium tin oxide/glass (ZnO nanowires/ITO/Glass) substrate by cyclic vltammetry (CV). First, the ZnO seed-layer was deposited on ITO/Glass by RF sputtering. The ZnO nanowires were grown for different growth time on the ZnO seed-layer by chemical bath deposition (CBD), and the aspect ratios were investigated. The PMeT thin films were deposited on ITO/Glass and ZnO nanowires/ITO/Glass by cyclic vltammetry. The electrochromic thin films ZnO nanowires/ITO/Glass was analyzed optical and electrochemical properties by photonic spectrometer, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry. We found that the PMeT thin films were deposited on ZnO nanowires/ITO/Glass, which the optimal growth time of the ZnO nanowires was 9 h that could obtain transmittance variation $(\Delta {T}_{450 \ {\rm nm}} =16{\%}, \Delta {T}_{650 \ {\rm nm}}= 21{\%})$ , optical density change $(\Delta {\rm OD}_{450 \ {\rm nm}} = 0.147, \Delta {\rm OD}_{650 \ {\rm nm}} = 0.196)$ , and the response time $({T}_{450 \ {\rm nm}} =24 \ {{s}}, {\rm T}_{650 \ {\rm nm}}=28 \ {{s}})$ .

© 2015 IEEE

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