期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 94, 期 2, 页码 386-389出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2009.08.020
关键词
Nanowire array; Cobalt oxide; Electrochromic properties
资金
- Zhejiang University K.P. Chao's High Technology Development Foundation [2008ZD001]
We report a self-supported Co3O4 nanowire array film prepared by a facile thermal oxidative decomposition method and its fast electrochomic properties. The electrochromic performances of Co3O4 nanowire array film are investigated in 0.1 M KOH by means of transmittance, cyclic voltammetry (CV) and chronoamperometry (CA) measurements. The effective area of the Co3O4 nanowire array film is 2 x 2 cm(-2). The Co3O4 nanowire array film exhibits a transmittance modulation of 32% in the visible region and fast response times with 1.8 s for coloration and 1.4 s for bleaching. The electrochemical stability of the Co3O4 nanowire array him is characterized by chronoamperometry with potentiostatic cycling. After 4500 cycles, the peak Currents of the film maintain 88% of the highest values. (C) 2009 Elsevier B.V. All rights reserved.
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