Optical and electrochemical properties of Ni doped WO3-MoO3 films prepared by sol-gel process

Zhuying Li; Minliang Zhang; Yan Zhang

doi:10.1117/12.783686

14 November 2007 Optical and electrochemical properties of Ni doped WO₃-MoO₃ films prepared by sol-gel process

Zhuying Li, Minliang Zhang, Yan Zhang

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 67224M (2007) https://doi.org/10.1117/12.783686
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

The electrochromic effect, change of optical transmittance with respect to the applied DC voltage,is a well-known phenomenon. The electrochromic film can be fabricated with various methods such as rf and dc sputtering, chemical vapour deposition, electron, thermal and ion cluster beams and several other methods. Sol-gel process offeres several advantages over conventional deposition method for the control of stoichiometry and film structure. It was known that WO₃ thin film doped with niobium and with Lithium exhibits a well bleaching process as compared with pure tungsten oxide film ^[1-4]. The presence of Li, Ta, Ti and Nb in WO₃ film improves the spectroelectrochemical response of these materials. So in this paper, we presented a mixed-metal oxide sol-gel synthesis, deposition, optical and electrochromic performances of Nickel (II) acetate doped tungsten molybdenum oxide film WO₃-MoO₃--Ni(CH₃COO)₂. The range of dopant concentration was 0.75ml-7.5ml V%. Film made from WO₃-MoO₃ precursor solutions was also used for comparison. The film has been studied and characterized by ultraviolet-visible spectroscopy, X-ray diffractometry (XRD), scanning electron microscopy (SEM) and electrochemistric station. The good coloring and bleaching behaviors of doped Ni film mean that they are suitable for electrochromic material.

Citation Download Citation

Zhuying Li, Minliang Zhang, and Yan Zhang "Optical and electrochemical properties of Ni doped WO₃-MoO₃ films prepared by sol-gel process", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67224M (14 November 2007); https://doi.org/10.1117/12.783686

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