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Proceedings Paper

Dilute limit of hopping transport in molecularly doped polymers
Author(s): Zoltan G. Soos; Shuqing Bao; Geoffrey W. Hayden
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Paper Abstract

Random variables for the position, energy, and orientation of donors are used to simulate hole transport in polymers with donor fraction p < 10 percent and clusters. Marcus hopping rates yield decreasing drift velocity with increasing bias field E. In contrast to energetic disorder emphasized in models at p approximately 50 percent, the mean dwell time (tau) (E) increases as positional or orientational disorder restricts hopping. Competition between energetic and positional disorder suggests a compensation temperature. Simulations of dilute systems are analyzed in terms of transient random walks, ensemble averages, and order statistics.

Paper Details

Date Published: 5 October 1999
PDF: 12 pages
Proc. SPIE 3799, Organic Photorefractives, Photoreceptors, Waveguides, and Fibers, (5 October 1999); doi: 10.1117/12.363888
Show Author Affiliations
Zoltan G. Soos, Princeton Univ. (United States)
Shuqing Bao, Princeton Univ. (United States)
Geoffrey W. Hayden, Princeton Univ. (United States)


Published in SPIE Proceedings Vol. 3799:
Organic Photorefractives, Photoreceptors, Waveguides, and Fibers
David H. Dunlap; Stephen Ducharme; Robert A. Norwood; David H. Dunlap; Robert A. Norwood, Editor(s)

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