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Optical Efficiency of the Electrochromic Windows Based on Solid Polymer Electrolytes

Published online by Cambridge University Press:  28 February 2011

M. Shabrang and
D.P. Murray
M. Shabrang
Affiliation:
Dow Chemical Company, Central Research, Catalysis Laboratory, Midland, Michigan 48674
D.P. Murray
Affiliation:
Dow Chemical Company, Central Research, Catalysis Laboratory, Midland, Michigan 48674
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Abstract

Interest in the electrochromics research in the 80's was mainly directed towards potential applications for variable light transmission windows. Even though large-area electrochromic cells incorporating liquid electrolytes are being investigated, we focused on solid state devices. Such devices offer fewer fabrication problems in large-area applications. The solid electrolyte layer is a key component in the fabrication of the solid state windows. This layer must be transparent, electrochemically stable and display adequate ionic conductivity. Optical efficiencies of asymmetric solid state devices based on tungsten oxide as the electrochromic material and commercially available ionomers and polyelectrolytes - Naflon, poly(styrene sulfonic acid), and poly(2-acrylamido-2-methylpropanesulfonic acid), as the solid electrolyte layer are presented at room temperature and 90 C. Impedance behavior of this asymmetric system is discussed and compared with the behavior observed in other systems.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 210: Symposium L – Solid State Ionics II , 1990, 43
Copyright
Copyright © Materials Research Society 1991

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