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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