Electrochromic device with a polymer ionic conductor

Book · Fri Dec 31 04:00:00 EST 1993

OSTI ID:201309

Zhou, Y; Gu, P; Tang, J ^[1]

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1. Zhejiang Univ., Hangzhou (China). Dept. of Optical Engineering

An electrochromic material is one which can undergo a reversible color change on the exertion of an external electric field. This can be used for large-area glazings of future buildings, automobiles, aircrafts, etc. Transmittance control of the smart windows can be useful to reduce lighting, heating and cooling energy loads. The optical and electrochromic properties of tungsten oxide films deposited by e-beam evaporation were investigated. A laminated structure device was prepared. The as-deposited tungsten oxide film was used as the electrochromic film. A solid polymer electrolyte PPG-PMMA-LiClO{sub 4} was used as an ionic conductor. Spectrophotometric measurements show that the luminous transmittance of the device can be modulated between about 60% and 15%.

• OSTI ID: 201309
• 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
AIRCRAFT
AUTOMOBILES
BUILDINGS
ELECTROCHROMISM
ENERGY EFFICIENCY
EXPERIMENTAL DATA
GLAZING
LAYERS
OPTICAL PROPERTIES
TUNGSTEN OXIDES
WINDOWS