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Use of ionic liquids for π-conjugated polymer electrochemical devices
journal contribution
posted on 2002-08-09, 00:00 authored by W Lu, A Fadeev, B Qi, E Smela, B Mattes, J Ding, G Spinks, J Mazurkiewicz, D Zhou, G Wallace, D MacFarlane, S Forsyth, Maria ForsythMaria Forsythπ-Conjugated polymers that are electrochemically cycled in ionic liquids have enhanced lifetimes without failure (up to 1 million cycles) and fast cycle switching speeds (100 ms). We report results for electrochemical mechanical actuators, electrochromic windows, and numeric displays made from three types of π-conjugated polymers: polyaniline, polypyrrole, and polythiophene. Experiments were performed under ambient conditions, yet the polymers showed negligible loss in electroactivity. These performance advantages were obtained by using environmentally stable, room-temperature ionic liquids composed of 1-butyl-3-methyl imidazolium cations together with anions such as tetrafluoroborate or hexafluorophosphate.
History
Journal
ScienceVolume
297Issue
5583Pagination
983 - 987Publisher
American Association for the Advancement of ScienceLocation
Washington, DCPublisher DOI
ISSN
0036-8075eISSN
1095-9203Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2002, American Association for the Advancement of ScienceUsage metrics
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