2 December 1985 Recent Research Related To The Development Of Electrochromic Windows
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Abstract
The results of recent research on each of the layers of a solid-state multilayer structure for electrochromic windows are reviewed. This includes a review of the requirements of the multilayer structure for building windows and especially the need to have an electrochemically balanced system. The results indicate that excess free electron scattering in polycrystalline W03 films (the electrochromic layer) is not only the source of lower than desired reflectivity modulation, but it is also the major source of higher than desired absorptivity modulation. Research on LiAlF4 indicatesthat it is a viable candidate for the ionic conducting layer, being a good lithium ion conductor and a good electronic insulator. Finally, we have recently discovered that tin-doped and undoped In 203 films are mixed conductors, exhibiting lithium ion injection/ extraction. This is significant since such films could possibly serve in the dual capacity of counterelectrode and transparent conductor, thereby reducing the complexity, the technical problems, and the cost of electrochromic window assemblies.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. B. Goldner, R. L. Chapman, G. Foley, E. L. Goldner, T. Haas, P. Norton, G. Seward, and K. K . Wong "Recent Research Related To The Development Of Electrochromic Windows", Proc. SPIE 0562, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IV, (2 December 1985); doi: 10.1117/12.966285; https://doi.org/10.1117/12.966285
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