Fast electrochromic properties of self-supported Co3O4 nanowire array film
Fast electrochromic properties of self-supported Co3O4 nanowire array film
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DOI：
10.1016/j.solmat.2009.08.020
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发表时间：
2010-02
影响因子：
6.9
通讯作者：
X. Xia;J. Tu;Jialei Zhang;J. Xiang;X. Wang;X. Zhao
中科院分区：
文献类型：
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作者：
X. Xia;J. Tu;Jialei Zhang;J. Xiang;X. Wang;X. Zhao
我们报道了一种通过简便的热氧化分解方法制备的自支撑Co3O4纳米线阵列薄膜及其快速电致变色性能。通过透射率、循环伏安法（CV）和计时电流法（CA）测量研究了Co3O4纳米线阵列薄膜在0.1M KOH中的电致变色性能。 Co3O4纳米线阵列薄膜的有效面积为2×2cm–2。 Co3O4纳米线阵列薄膜在可见光区域表现出32%的透射率调制和快速响应时间，着色时间为1.8秒，漂白时间为1.4秒。 Co3O4 纳米线阵列薄膜的电化学稳定性通过恒电位循环计时电流法进行表征。 4500次循环后，薄膜的峰值电流保持最高值的88%。
We report a self-supported Co3O4nanowire array film prepared by a facile thermal oxidative decomposition method and its fast electrochomic properties. The electrochromic performances of Co3O4nanowire array film are investigated in 0.1M KOH by means of transmittance, cyclic voltammetry (CV) and chronoamperometry (CA) measurements. The effective area of the Co3O4nanowire array film is 2×2cm–2. The Co3O4nanowire array film exhibits a transmittance modulation of 32% in the visible region and fast response times with 1.8s for coloration and 1.4s for bleaching. The electrochemical stability of the Co3O4nanowire array film is characterized by chronoamperometry with potentiostatic cycling. After 4500 cycles, the peak currents of the film maintain 88% of the highest values.