Influence of film structure on mobilities of charge carriers in conducting polymers

Electrochimica Acta Volume 52 Issue 28 Page 8088-8095 published_at 2007-11
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Title ( eng )
Influence of film structure on mobilities of charge carriers in conducting polymers
Creator
Jiang Xiaoqing
Patil Rahul
Mizota Haruo
Source Title
Electrochimica Acta
Volume 52
Issue 28
Start Page 8088
End Page 8095
Abstract
Two sorts of poly(3-hexylthiophene) (PHT) films with the same chemical compositions were prepared, and their electrochemical, spectroscopic, and transport properties were studied with a special interest in a possible influence of film structure on mobilities of charge carriers. One of the PHT films was electrochemically synthesized using 3-hexylthiophene as a monomer (as-grown film) and the other was obtained by dissolving the as-grown film in chloroform and then casting the polymer solution (cast film). A clear difference was observed in the mobility versus doping level plot between the two sorts of PHT films, demonstrating that the difference is caused only by a distinction in film structure. An initial decreasing feature of the mobility plot observed for the cast films was accounted for in terms of swelling of the films at an early stage of doping.
Keywords
poly(3-hexylthiophene)
electrosynthesis
doping
mobility
swelling
NDC
Chemistry [ 430 ]
Language
eng
Resource Type journal article
Publisher
Pergamon-Elsevier Science Ltd
Date of Issued 2007-11
Rights
Copyright(c) 2007 Pergamon-Elsevier Science Ltd
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0013-4686
[DOI] 10.1016/j.electacta.2007.07.007
[NCID] AA00633261
[DOI] http://dx.doi.org/10.1016/j.electacta.2007.07.007 isVersionOf