Citation

Au, Benedict Wen Cheun and Chan, Kah Yoong (2020) Effect of precursor solution stirring time on the electrochromic performance of tungsten oxide films. Surface Engineering, 36 (1). pp. 94-99. ISSN 0267-0844

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Abstract

Tungsten oxide (WO3) is an n-type semiconductor with a wide range of transparent electronic applications such as smart windows, rear-view displays and gas sensors. In this work, WO3 films were prepared on tin doped indium oxide (ITO) coated glasses by utilising the sol–gel spin-coating method. The effect of WO3 precursor solution stirring time (3, 10 and 24 h) on the electrochromic (EC) properties of WO3 films was investigated. The optical transmittance of the WO3 films in the visible range decreased as precursor stirring time was increased. The WO3 films subjected to 3 and 10 h of stirring had a large optical modulation compared to the WO3 films subjected to 24 h of stirring. CV results showed higher coloration current in WO3 films subjected to 3 h stirring which is an indication of faster intercalation kinetics. Moreover, it had fast switching time and high coloration efficiency of 34.8 cm2 C–1.

Item Type:	Article
Uncontrolled Keywords:	Semiconductors, Tungsten oxide, WO3, sol–gel spin-coating, electro chromic, stirring time
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	13 Dec 2020 13:25
Last Modified:	13 Dec 2020 13:25
URII:	http://shdl.mmu.edu.my/id/eprint/7929

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