Mechanism of charge transport in polypyrrole, poly(N‐methyl pyrrole) and their copolymers
作者:
Ramadhar Singh,
Amarjeet K. Narula,
R. P. Tandon,
A. Mansingh,
Subhas Chandra,
期刊:
Journal of Applied Physics
(AIP Available online 1996)
卷期:
Volume 79,
issue 3
页码: 1476-1480
ISSN:0021-8979
年代: 1996
DOI:10.1063/1.360987
出版商: AIP
数据来源: AIP
摘要:
The temperature dependence of the dc conductivity of electrochemically polymerized films of polypyrrole, poly(N‐methyl pyrrole) and their copolymers, poly(N‐methyl pyrrole‐pyrrole), having different percentage of BF−4ions has been investigated in the temperature range 77–350 K. The observed behavior could be explained in terms of Mott’s variable range hopping model involving a single phonon process. The estimated values of polaron radius yield the realistic values of density of states at the Fermi level which are in good agreement with the values reported earlier for other polyconjugated systems. ©1996 American Institute of Physics.
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