Preparation and Electrochromic Properties of Mesoporous WO3 Film

Abstract:

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The WO3 film was prepared by dip coating method with WCl6 as the soure of tungsten and P123 as the structure-directing agent. The crystalline phase and microstructure of the film were characterized through XRD and TEM techniques, respectively. It was found the film annealed at 300°C for 4h mainly was amorphous WO3 with a little monoclinic WO3. The TEM micrographs revealed the film was partly ordered mesoporous and the mean pore diameter was about 5nm. The measurements of the cyclic voltammetry suggested that the WO3 film had a good electrochromic reversibility performance. The ratio of amount of charge intercalated and amount of charge deintercalated during the cyclic voltammetry, was over 99%. The film possessed a very short respond time which was only about 3.1s.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

867-870

DOI:

10.4028/www.scientific.net/AMR.79-82.867

Citation:

F. L. Shang et al., "Preparation and Electrochromic Properties of Mesoporous WO3 Film", Advanced Materials Research, Vols. 79-82, pp. 867-870, 2009

Online since:

August 2009

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Price:

$35.00

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