Switchable Optical Polarizer Based on Electrochromism in Stretch-Aligned Polyaniline
2003 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 83, no 7, 1307-1309 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2003. Vol. 83, no 7, 1307-1309 p.
optical polymers, electrochromism, polymer films, optical polarisers
IdentifiersURN: urn:nbn:se:liu:diva-13799DOI: 10.1063/1.1602556OAI: oai:DiVA.org:liu-13799DiVA: diva2:21642