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Proton Conducting Polymer Electrolytes for Possible Application In Electrochromic Display Devices

Published online by Cambridge University Press:  21 February 2011

R.P. Singh ,
P.N. Gupta ,
S.L. Agrawal  and
U.P. Singh
R.P. Singh
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi-221005, India
P.N. Gupta
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi-221005, India
S.L. Agrawal
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi-221005, India
U.P. Singh
Affiliation:
Department of Physics, Banaras Hindu University, Varanasi-221005, India
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Abstract

Proton conduction in polymer composites of PVA+H3PO4 AND PVA+H2SO4 have been investigated. The films protonated by H3PO4 show protonic conductivity between 10−6to 10−3ohm−1cm−1 depending upon the relative ratios and temperature. H2SO4 protonated PVA films also show proton conductance of almost similar magnitude. The ionic transference number has been estimated to be 0.95 for H3PO4 protonated PVA film of ratio 70:30. The frequency and temperature dependence of electrical conductivity has also been carried out. These polymer films have been used to fabricate an electrochromic cell. The colorationtime determined from response time measurement for the system “SnO2|Glass|WO3 film|PVA film|SnO2 Glass” is 2.6 sec for H3PO4 doped films and 6 seconds for H2SO4 doped films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 135: Symposium M – Solid State Ionics I , 1988 , 361
Copyright
Copyright © Materials Research Society 1989

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