Preparation of poly (ethylene oxide) (PEO) modified tungsten oxide hybrid filmsvia sol-gel processing

Yuan Jian; Shangguan Wenfeng; Liu Ming-zhi; Ouyang shi-xi

doi:10.1007/BF02835074

Journal of Wuhan University of Technology Materials Science Edition ›› 2003, Vol. 18 ›› Issue (1) : 4 -6. DOI: 10.1007/BF02835074

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Preparation of poly (ethylene oxide) (PEO) modified tungsten oxide hybrid filmsvia sol-gel processing

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Abstract

Poly (ethylene axide) (PEO) modified WO₃ thin films were prepared on glass substrates with special temperature. The sol-gel transition proess was investigated by using DTA-TG, SEM and XRD. The electrochemical characteristic of the films was studied by cyclic voltmmetry measurement. The results show that PEO has heavy effects on the crystallization of WO₃ during structure evolution because of the interaction between PEO and WO₃. It increases the crystallization temperature of the gels and thus improves the electrochemical properties and cyclic life of WO₃ film as electrochromic materials.

Keywords

sol-gel dipcoating films / electrochromic / PEO / WO₃

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Yuan Jian, Shangguan Wenfeng, Liu Ming-zhi, Ouyang shi-xi. Preparation of poly (ethylene oxide) (PEO) modified tungsten oxide hybrid filmsvia sol-gel processing. Journal of Wuhan University of Technology Materials Science Edition, 2003, 18(1): 4-6 DOI:10.1007/BF02835074

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References

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