TITLE

Switchable optical polarizer based on electrochromism in stretch-aligned polyaniline

AUTHOR(S)
Andersson, Peter; Berggren, Magnus; Kugler, Thomas
PUB. DATE
August 2003
SOURCE
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1307
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the polarizing electrochromic (EC) effect of a conjugated polymer. This has been achieved in a planar flexible electrochemical device cell comprised of a patterned stretch-aligned thin film of polyaniline and an electrolyte, all made on a polyethylene foil substrate. The resulting device exhibits polarized absorption characteristics, of a dichroic ratio of 4, that can be controlled by the voltage applied. Also, thin flexible EC polarizers have been realized by combining two stretch-aligned polyaniline films with orthogonal stretching direction. In the resulting EC polarizer the orientation of the polarized absorption can be switched between two orthogonal directions, depending on the voltage applied. © 2003 American Institute of Physics.
ACCESSION #
10543256

 

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