Novel dye+solid polymer electrolyte material for optical humidity sensing

Our experimental observations show that certain dyes when incorporated in solid polymer electrolytes (SPE) can serve as an excellent candidates for optical humidity sensing. Crystal violet (CV) have been incorporated in poly(vinyl alcohol) (PVA)/H 3PO 4, which is known to be a SPE and a good proton...

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Bibliographic Details
Published in:Organic electronics 2001, Vol.2 (2), p.83-88
Main Authors: Somani, P.R., Viswanath, A.K., Aiyer, R.C., Radhakrishnan, S.
Format: Article
Language:English
Subjects:
Crystal violet
Optical humidity sensing
Poly(vinyl alcohol)
Relative humidity
Solid polymer electrolyte
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Summary:Our experimental observations show that certain dyes when incorporated in solid polymer electrolytes (SPE) can serve as an excellent candidates for optical humidity sensing. Crystal violet (CV) have been incorporated in poly(vinyl alcohol) (PVA)/H 3PO 4, which is known to be a SPE and a good proton conductor. Films of PVA/H 3PO 4 containing CV dye have been studied for use in optical humidity sensing and the interesting results have been discussed here in this paper. We have also tried to give a mechanism for the changes observed in the optical properties of such films by the variation of humidity.
ISSN:1566-1199
1878-5530
DOI:10.1016/S1566-1199(01)00014-3