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Proceedings Paper

Characteristics of laminated electrochromic devices using polyorganodisulfide electrodes
Author(s): Carl M. Lampert; Steven J. Visco; Marca M. Doeff; Yan-Ping Ma; Yongxiang He; J. C. Giron
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Paper Abstract

The use of polyorganodisulfides as optically passive counter-electrodes in a variety of electrochromic devices are discussed. Characteristic data is presented for electrochromic devices using proton, and lithium coloration ions with polyethylene oxide electrolyte and polydimercaptothiadiazole positive electrodes. Solid state devices consisting of molybdenum doped WO3, emorphous polyethylene oxide electrolyte (a-PEO), and a polyorganodisulfide counter-electrode colored rapidly from a pale yellow to a deep blue-green, upon application of 1.2 V d.c. The photopic transmittance changed from 61 to 9%, and the solar transmittance from 45 to 5% during the coloration process. Also, our experiments with polyimidazole are detailed. This family of compounds due to its unique electrical and ion conduction properties allow a single composite ion storage and ion conductor electrode to be made, simplifying the device construction. Devices made from this family of compounds color to deep blue-gray upon application of 1.2 - 1.5 V. Bleaching occurs at -0.4 to -0.5V. The photopic transmittance changed from 55 to 9%, and the solar transmittance from 34 to 4% during coloration. Both coloration and bleaching are quite rapid.

Paper Details

Date Published: 22 October 1993
PDF: 12 pages
Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); doi: 10.1117/12.161954
Show Author Affiliations
Carl M. Lampert, Lawrence Berkeley Lab. (United States)
Steven J. Visco, Univ. of California/Berkeley (United States)
Marca M. Doeff, Univ. of California/Berkeley (United States)
Yan-Ping Ma, Lawrence Berkeley Lab. (United States)
Yongxiang He, Lawrence Berkeley Lab. (United States)
J. C. Giron, Lawrence Berkeley Lab. (United States)

Published in SPIE Proceedings Vol. 2017:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII
Carl M. Lampert, Editor(s)

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