Characteristics of laminated electrochromic devices using polyorganodisulfide electrodes

Book · Fri Dec 31 04:00:00 EST 1993

OSTI ID:201308

Lampert, C M; Visco, S J; Doeff, M M; Ma, Y P; He, Y; Giron, J C ^[1]

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1. Lawrence Berkeley Lab., CA (United States)

The use of polyorganodisulfides as optically passive counter-electrodes in a variety of electrochromic devices are discussed. Characteristic data are 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 WO{sub 3}, amorphous 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, the 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 {minus}0.4 to {minus}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.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 201308
• Report Number(s): CONF-930722--; ISBN 0-8194-1266-X
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AUTOMOBILES
BUILDINGS
ELECTROCHROMISM
EXPERIMENTAL DATA
GLAZING
LAYERS
LITHIUM IONS
OPTICAL PROPERTIES
TUNGSTEN OXIDES
WINDOWS