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Strategies for Conducting Polymer Solutions: Solvato-Controlled Oxidative Doping Using Metal Cations

Published online by Cambridge University Press:  10 February 2011

M. Lebedev  and
S. Holdcroft
M. Lebedev
Affiliation:
Department of Chemistry, Simon Fraser University, Burnaby, B.C., V5A 1S6steveh@bohr.chem.sfu.ca
S. Holdcroft
Affiliation:
Department of Chemistry, Simon Fraser University, Burnaby, B.C., V5A 1S6steveh@bohr.chem.sfu.ca
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Abstract

Solutions of Ag(I) and poly(3-alkylthiophenes), which usually precipitate immediately upon contact, are stabilized with Ag(l)-coordinating ligands. Casting of polymer-Ag(I)-ligand solutions followed by evaporation of the ligand yields an electronically conducting polymer film. It is postulated that Ag(I) either undergoes nucleophillic addition to poly(3-alkylthiophenes), in a manner similar to which polythiophenes are protonated by acids, or forms a charge transfer complex with the polymer. The “doped” polymer exhibits enhanced stability over films oxidized using conventional oxidants. Ag(I)-doping of poly(3-alkylthiophenes) represents a new strategy for doping conjugated systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 413: Symposium W – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III , 1995 , 497
Copyright
Copyright © Materials Research Society 1996

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References

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