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Proceedings Paper

Anomalous Electrochromic Behavior Of Ag-WO3 And Au-WO3 Cermets
Author(s): P. V. Ashrit; G. Bader; Fernand E. Girouard; Vo-Van Truong
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Paper Abstract

Optical and electrochromic properties of Ag-WO3 and Au-WO3 cermets with different metal filling factors are presented. The two cermet systems show entirely different optical properties which have been examined in the light of Maxwell-Garnett theory. Under low density lithium ion insertion these systems exhibit normal electrochromic coloration with the formation of tungsten bronze (LixW03). However, beyond a certain threshold density of lithium ion insertion these systems show an anomalous behavior in the optical properties. This behavior seems to be originating from the irreversible formation of lithium tungstate (Li2W04).

Paper Details

Date Published: 12 December 1989
PDF: 13 pages
Proc. SPIE 1149, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII, (12 December 1989); doi: 10.1117/12.962162
Show Author Affiliations
P. V. Ashrit, Universite de Moncton (Canada)
G. Bader, Universite de Moncton (Canada)
Fernand E. Girouard, Universite de Moncton (Canada)
Vo-Van Truong, Universite de Moncton (Canada)


Published in SPIE Proceedings Vol. 1149:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion VIII
Claes-Goeran Granqvist; Carl M. Lampert, Editor(s)

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