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Charge Carrier TransportMechanism of ð-Conjugated Organic Materials

Published online by Cambridge University Press:  15 February 2011

Seong Hyun Kim ,
Yong Suk Yang ,
Jung Hun Lee ,
Sang Chul Lim  and
Taehyoung Zyung
Seong Hyun Kim
Affiliation:
Basic Research Laboratory, ETRI 161 Gajeong-Dong, Yusong-Gu, Daejon 305-350, Korea
Yong Suk Yang
Affiliation:
Basic Research Laboratory, ETRI 161 Gajeong-Dong, Yusong-Gu, Daejon 305-350, Korea
Jung Hun Lee
Affiliation:
Basic Research Laboratory, ETRI 161 Gajeong-Dong, Yusong-Gu, Daejon 305-350, Korea
Sang Chul Lim
Affiliation:
Basic Research Laboratory, ETRI 161 Gajeong-Dong, Yusong-Gu, Daejon 305-350, Korea
Taehyoung Zyung
Affiliation:
Basic Research Laboratory, ETRI 161 Gajeong-Dong, Yusong-Gu, Daejon 305-350, Korea
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Abstract

The complex dielectric constants of several π-conjugated materials were measured, and generalized Langevin equation was used to analyze the dielectric behavior in the frequency domain. From the results of the fitting the experimental data using the generalized Langevin equation, we suggest that the charge carriers are electrically screened by the neighboring charges through the structural relaxation, and the carriers are not interact each other. We confirmed that the generalized Langevin equation offers a very good approach to analyze and understand the transport properties of charge carriers in π-conjugated materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 769: Symposium H – Flexible Electronics - Materials and Device Technology , 2003 , H3.5
Copyright
Copyright © Materials Research Society 2003

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