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New Conjugated Polymers Derived from Carbazole as Thermoelectric Materials

Published online by Cambridge University Press:  01 February 2011

Isabelle Lévesque ,
Xing Gao ,
Christopher I. Ratcliffe ,
Dennis D. Klug ,
John S. Tse ,
Nicolas Blouin ,
Jean-François Morin  and
Mario Leclerc
Isabelle Lévesque
Affiliation:
Steacie Institute for Molecular Sciences, National Research Council of Canada 100 Sussex Drive, Ottawa (Ontario), K1A 0R6 Canada Canada Research Chair in Electroactive and Photoactive Polymers, Département de chimie, Université Laval, Quebec (Quebec), G1K 7P4 Canada
Xing Gao
Affiliation:
Steacie Institute for Molecular Sciences, National Research Council of Canada 100 Sussex Drive, Ottawa (Ontario), K1A 0R6 Canada
Christopher I. Ratcliffe
Affiliation:
Steacie Institute for Molecular Sciences, National Research Council of Canada 100 Sussex Drive, Ottawa (Ontario), K1A 0R6 Canada
Dennis D. Klug
Affiliation:
Steacie Institute for Molecular Sciences, National Research Council of Canada 100 Sussex Drive, Ottawa (Ontario), K1A 0R6 Canada
John S. Tse
Affiliation:
Steacie Institute for Molecular Sciences, National Research Council of Canada 100 Sussex Drive, Ottawa (Ontario), K1A 0R6 Canada
Nicolas Blouin
Affiliation:
Canada Research Chair in Electroactive and Photoactive Polymers, Département de chimie, Université Laval, Quebec (Quebec), G1K 7P4 Canada
Jean-François Morin
Affiliation:
Canada Research Chair in Electroactive and Photoactive Polymers, Département de chimie, Université Laval, Quebec (Quebec), G1K 7P4 Canada
Mario Leclerc
Affiliation:
Canada Research Chair in Electroactive and Photoactive Polymers, Département de chimie, Université Laval, Quebec (Quebec), G1K 7P4 Canada
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Abstract

Novel poly(3,6-hexyl-2,7-N-octylcarbazole) derivatives and poly(diindolocarbazole)s were synthesized. Optical, electrochemical, electrical and thermoelectric properties were investigated. Band structure calculations were used to predict which polymers were promising as thermoelectric materials. The best combination of Seebeck coefficient and conductivity (power factor) was 9,4 x10-8 Wm-1K-2 with a copolymer of carbazole and thiophene. This corresponds to a ZT at room temperature of 0.0003. Optimization of the polymer structure and doping level should lead to an increased ZT.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 871: Symposium I – Organic Thin-Film Electronics , 2005 , I9.41
Copyright
Copyright © Materials Research Society 2005

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