Optical Switching In "Complementary" Electrochromic Windows

Stuart F. Cogan; Timothy D. Plante; Robert S. McFadden; R. David Rauh

doi:10.1117/12.936665

23 February 1987 Optical Switching In "Complementary" Electrochromic Windows

Stuart F. Cogan, Timothy D. Plante, Robert S. McFadden, R. David Rauh

Proceedings Volume 0692, Materials and Optics for Solar Energy Conversion and Advanced Lightning Technology; (1987) https://doi.org/10.1117/12.936665
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

The electrochemical and optical switching characteristics of a variety of variable transmittance complementary electrochromic windows are presented. The complementary configurations are based on hydrogen insertion in cathodically coloring amorphous WO3 and crystalline KxWO3+(x/2) combined with anodically coloring IrO2. These windows exhibit typical transmittance modulations from 70 to 15% in the visible spectrum and undergo ca. 4000 to 6000 switching cycles without degradation. The optical switching characteristics are discussed in terms of the complementary device structure and the electrochemistry of the individual electrochromic layers.

Citation Download Citation

Stuart F. Cogan, Timothy D. Plante, Robert S. McFadden, and R. David Rauh "Optical Switching In "Complementary" Electrochromic Windows", Proc. SPIE 0692, Materials and Optics for Solar Energy Conversion and Advanced Lightning Technology, (23 February 1987); https://doi.org/10.1117/12.936665

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