Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 11, Pages 1815-1818Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.09.025
Keywords
CO3O4; Porous film; Electrochromic performance; Chemical bath deposition
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Funding
- Zhejiang University K.P. Chao's High Technology Development Foundation [2008ZD001]
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A highly porous cobalt oxide thin film was prepared on ITO glass by a facile chemical bath deposition (CBD) method. The as-prepared cobalt oxide film has an intercrossing net-like morphology. The electrochromic performance of cobalt oxide film was investigated in 0.1 M KOH by means of transmittance, cyclic voltammetry (CV) and chronoamperometry (CA) measurements. The cobalt oxide thin film exhibits a noticeable electrochromism with reversible color changes from pale yellow to dark grey and presents a transmittance variation with 36% in the visible range. The porous cobalt oxide thin film also shows good reaction kinetics with fast switching speed, and the coloration and bleaching time are 2.5 and 2 s, respectively. (c) 2008 Elsevier B.V. All rights reserved.
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