The optical and electrochemical properties of electrochromic films: WO3+xV2O5

Zhuying Li; Hui Liu; Ye Liu; Shaohong Yang; Yan Liu; Chong Wang

doi:10.1117/12.867218

13 October 2010 The optical and electrochemical properties of electrochromic films: WO₃+xV₂O₅

Zhuying Li, Hui Liu, Ye Liu, Shaohong Yang, Yan Liu, Chong Wang

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 765411 (2010) https://doi.org/10.1117/12.867218
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Since Deb's experiment in 1973 on the electrochromic effect, transmissive electrochromic films exhibit outstanding potential as energy efficient window controls which allow dynamic control of the solar energy transmission. These films with non-volatile memory, once in the coloured state, remain in the same state even after removal of the field. The optical and electrochemical properties of electrochromic films using magnetron sputter deposition tungsten oxide thin films and vanadium oxide doped tungsten-vanadium oxide thin films on ITO coated glass were investigated. From the UV region of the transmittance spectra, the optical band gap energy from the fundamental absorption edge can be determined. And the Cyclic voltammograms of these thin films in 1 mol LiClO₄ propylene carbonate electrolyte (LIPC) were measured and analysed. The anode electrochromic V₂O₅ doped cathode electrochromic WO₃ could make films colour changing while the transmittance of films keeped invariance. These performance characteristics make tungstenvanadium oxide colour changeably thin films are suitable for electrochromic windows applications.

Citation Download Citation

Zhuying Li, Hui Liu, Ye Liu, Shaohong Yang, Yan Liu, and Chong Wang "The optical and electrochemical properties of electrochromic films: WO₃+xV₂O₅", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 765411 (13 October 2010); https://doi.org/10.1117/12.867218

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