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Proceedings Paper

Hole mobilities in a photorefractive polymer
Author(s): Arosha W. Goonesekera; Stephen Ducharme; James M. Takacs; Lei Zhang
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Paper Abstract

We present measurements of the hole mobility in a photorefractive polymer composite as a function of temperature and applied electric field. The material is a composite, non-linear optical polymer bisphenol A 4-4'- nitroaminostilbene (bisA-NAS) mixed with 30 wt % of the hole transport agent diethylamino-benzaldehyde diphenyl hydrazone (DEH). The electric field and temperature dependencies of the hole mobility in the photorefractive polymer can be described at high fields by exp((beta) E1/2) and exp [-(T0/T)2] respectively, in agreement with the disorder theory of the well-known hopping model developed for charge-transport in molecularly doped polymers. The mobilities at all temperatures decrease ((beta) less than 0) with increasing fields up to a certain field, but increase again ((beta) greater than 0) at higher fields.

Paper Details

Date Published: 15 October 1996
PDF: 12 pages
Proc. SPIE 2850, Organic Photorefractive Materials and Xerographic Photoreceptors, (15 October 1996); doi: 10.1117/12.254249
Show Author Affiliations
Arosha W. Goonesekera, Univ. of Nebraska/Lincoln (United States)
Stephen Ducharme, Univ. of Nebraska/Lincoln (United States)
James M. Takacs, Univ. of Nebraska/Lincoln (United States)
Lei Zhang, Univ. of Nebraska/Lincoln (United States)

Published in SPIE Proceedings Vol. 2850:
Organic Photorefractive Materials and Xerographic Photoreceptors
Stephen Ducharme; James W. Stasiak, Editor(s)

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