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Citation: CHU Yan-Qiu, WU Bo, WU Liang, SHUI Qing, FU Zheng-Wen. Electrochromic Properties of Bismuth Oxide Thin Films Prepared by Reactive Pulsed Laser Deposition[J]. Acta Physico-Chimica Sinica, ;2007, 23(11): 1787-1791. doi: 10.3866/PKU.WHXB20071125 shu

Electrochromic Properties of Bismuth Oxide Thin Films Prepared by Reactive Pulsed Laser Deposition

1.
Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Laser Chemistry Institute, Chemistry Department, Fudan University, Shanghai 200433, P. R. China

Received Date: 8 June 2007
Available Online: 25 September 2007

The electrochromic behaviors of the tetra nal Bi2O3 films deposited by pulsed laser deposition at 300 ℃ were investigated by potential step and cyclic voltammetry coupled with an in situ charge-coupled device (CCD) spectrophotometer. The time-resolved absorption spectrum determined by potential step method indicated that the coloration time for Bi2O3 film was estimated to be 30 s. In addition, the electrochromic properties determined by cyclic voltammetry showed that this film could exhibit a significantly reversible variation between transparent and dark brown more than 50 times on switching between 3.5 and 0.7 V. The color efficiency at 630 nm was estimated to be 15 cm2·C-1.
- Pulsed laser deposition; Bismuth oxide thin film; Cyclic voltammetry; Potential step; Electrochromic properties
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