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The Role of Polar Additives on Charge Transport in Molecularly Doped Polymers
Author(s) -
Borsenberger P. M.,
Bässler H.
Publication year - 1992
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221700130
Subject(s) - polar , cyclohexane , doping , materials science , polycarbonate , dipole , chemical physics , polymer , charge (physics) , chemical engineering , chemistry , organic chemistry , physics , optoelectronics , composite material , quantum mechanics , astronomy , engineering
Abstract The role of polar additives, o, m, and p‐dinitrobenzene, on hole transport in 1,1‐bis(di‐4‐tolylamino‐phenyl)cyclohexane doped polycarbonate is investigated. The results are described by a model based on hopping through a manifold of states with superimposed energetic and positional disorder that remains static on the time scale of a hopping event. The results lead to the conclusion that the main effect of the polar additives is the enhancement of disorder, both energetic and positional, the dipolar reorientation being relatively unimportant.

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