Research on solid electrochromic mirror

Yong Ji; Yu-bin Miao; Pen-fei Zhou; Lin Chen

doi:10.1117/12.252951

3 October 1996 Research on solid electrochromic mirror

Yong Ji, Yu-bin Miao, Pen-fei Zhou, Lin Chen

Proceedings Volume 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications; (1996) https://doi.org/10.1117/12.252951
Event: Photonics China '96, 1996, Beijing, China

Abstract

The electrochromic mirror has prospective applications in rear mirror of automobiles. Starting with the technique of electrochromic mirror, this paper presents the research results of such a mirror. When evaporation a five-layer thin film stack i.e. glass/ITO/NiO(Lithiumed)/Ta₂O₅/WO₃/Al on a transparent glass substrate, we can obtain an electrochromic mirror. We find that the coating technique will play a key role on the function of the device. The thickness of some layers is critical for the mirror, these layers are NiO, Ta₂O₅ and WO₃. The actually prepared mirror with such structure has a reflectance variation from 70% to 15%. The switching time is about 15 seconds and 7 seconds from bleaching to coloration and from bleaching to coloration respectively. The effects of film structure and composition to the properties of the mirror are measured and discussed by x-ray diffraction, x-photo spectrum and voltammetry. The electrochromic mirror meets the needs for practical application.

Citation Download Citation

Yong Ji, Yu-bin Miao, Pen-fei Zhou, and Lin Chen "Research on solid electrochromic mirror", Proc. SPIE 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications, (3 October 1996); https://doi.org/10.1117/12.252951

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