Electrochromic properties of bismuth oxide thin films prepared by reactive pulsed laser deposition

被引：0

作者：

Chu Yan-Qiu ^{[1
]}

Wu Bo ^{[1
]}

Wu Liang ^{[1
]}

Shui Qing ^{[1
]}

Fu Zheng-Wen ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Laser Chem Inst, Shanghai Key Lab Mol Catalysts & Innovat Mat, Shanghai 200433, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2007年 / 23卷 / 11期

关键词：

pulsed laser deposition; bismuth oxide thin film; cyclic voltammetry; potential step; electrochromic properties;

D O I：

10.3866/PKU.WHXB20071125

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochromic behaviors of the tetragonal Bi2O3 films deposited by pulsed laser deposition at 300 degrees C 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 cm(2).C-1.

引用

页码：1787 / 1791

页数：5

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