P. A. Pavlov, A. P. Tyutnev, E. D. Pozhidaev, and V. S. Saenko
Moscow State University of Electronics and Mathematics,
Trekhsvyatitel’skii per. 3/12, Moscow, 109028 Russia
Received April 9, 1998;
Revised Manuscript Received November 19, 1998
Abstract—An analysis of the existing experimental data on the charge carrier transport in PS and poly(vinyl-
carbazole) is performed and the character of time variation of the effective hole mobility is established for the
entire time range (from the fractions of a nanosecond up to tens of seconds) at 300 K. The effective frequency
factor is demonstrated to simply coincide with the frequency of hindered rotation of the phenyl groups in PS
and carbazole groups in poly(vinylcarbazole). This rotation is established to be the only channel for the modu-
lation of electron hopping by the molecular motions in the polymers under discussion.
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