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Proceedings Paper

Effects of degradation on the performance of a triphenylene based liquid crystal organic semiconductor
Author(s): Nathan J. Dawson; Michael S. Patrick; Kyle Peters; Sanjoy Paul; Brett Ellman; Rachael Matthews; Emily Pentzer; Robert J. Twieg; Kenneth D. Singer
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Paper Abstract

We report on time-of-flight (TOF) hole mobility measurements in an aged discotic columnar liquid crystal, Hexakis(pentyloxy)triphenylene (HAT5). The experimental data was fit to an interfacial trapping model based on Van de Walle’s approximations. The theory accurately reproduces the TOF transients of delayed charge release near the optically excited material/electrode interface. Interfacial trapping appears only in the aged materials, but the bulk mobility is the same as that of the pristine material. We also discuss preliminary results of TOF photocurrent transients of HAT5 exposed to ozone.

Paper Details

Date Published: 1 September 2015
PDF: 11 pages
Proc. SPIE 9616, Nanophotonics and Macrophotonics for Space Environments IX, 96160B (1 September 2015); doi: 10.1117/12.2187528
Show Author Affiliations
Nathan J. Dawson, Case Western Reserve Univ. (United States)
College of The Bahamas (Bahamas)
Michael S. Patrick, Case Western Reserve Univ. (United States)
Kyle Peters, Case Western Reserve Univ. (United States)
Sanjoy Paul, Kent State Univ. (United States)
Brett Ellman, Kent State Univ. (United States)
Rachael Matthews, Case Western Reserve Univ. (United States)
Emily Pentzer, Case Western Reserve Univ. (United States)
Robert J. Twieg, Kent State Univ. (United States)
Kenneth D. Singer, Case Western Reserve Univ. (United States)


Published in SPIE Proceedings Vol. 9616:
Nanophotonics and Macrophotonics for Space Environments IX
Edward W. Taylor; David A. Cardimona, Editor(s)

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