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Huge values of room-temperature dielectric constants in pellets of poly(3-methylthiophene)

Published online by Cambridge University Press:  03 March 2011

S. Moraes ,
L. Walmsley ,
E.C. Pereira  and
A.A. Correa
S. Moraes
Affiliation:
Departamento de Física, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, Caixa Postal 178, CEP 13500-970, Rio Claro, S.P., Brazil
L. Walmsley*
Affiliation:
Departamento de Física, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, Caixa Postal 178, CEP 13500-970, Rio Claro, S.P., Brazil
E.C. Pereira
Affiliation:
Departamento de Química, Universidade Federal de São Carlos, Caixa Postal 676, CEP 13560-970, São Carlos, S.P., Brazil
A.A. Correa
Affiliation:
Departamento de Química, Universidade Federal de São Carlos, Caixa Postal 676, CEP 13560-970, São Carlos, S.P., Brazil
*
a) Address all correspondence to this author. e-mail: walmsley@rc.unesp.br
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Abstract

Room temperature data of impedance and phase angle in pellets of electrochemically synthesized ClO4− doped poly(3-methylthiophene) (P3MT) were analyzed assuming the sample being represented by a parallel resistor-capacitor (RC) circuit or by a series RC circuit. The last assumption proved to be the correct one, and to confirm it we use the sample as the RC component of a resistor-capacitor-inductor series resonator. We discuss the possibility of this RC series behavior to be due to a charge-density wave characteristic also evidenced from the huge values of the low-frequency dielectric constant of the system.

Keywords

Electrochemical synthesisPolymersDielectric properties
Type
Articles—Organic Electronics Special Section
Information
Journal of Materials Research , Volume 19 , Issue 7 , July 2004 , pp. 2068 - 2071
Copyright
Copyright © Materials Research Society 2004

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References

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