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Proceedings Paper

Effect of aryl substitution on the hole mobility of bis-diarylaminobiphenyl-doped polymer composites
Author(s): Jose-Luis Maldonado; Max Bishop; Canek Fuentes-Hernandez; Benoit Domercq; Stephen Barlow; S. Thayumanavan; Massimo Malagoli; Mariappan Manoharan; Jean-Luc Bredas; Seth R. Marder; Bernard Kippelen
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Paper Abstract

Hole mobilities in substituted N, N'-bis-(m-tolyl)-N-N'-diphenyl-1,1'-biphenyl-4,4'-diamine (TPD) derivatives doped in polystyrene (PS), were analyzed by the time-of-flight technique to determine the effect of altering the geometric and electronic structure of TPD. Data were collected as a function of applied field and temperature to yield the energetic and positional disorder parameters defined in the disorder formalism. The impact of the molecular dipole moment on transport properties was also evaluated. The larger molecular dipole moments of the derivatives lead to an increase in the energetic disorder, which contributes to their lower mobilities. However, the dipolar disorder contribution was found to account only partially for the large differences in mobility.

Paper Details

Date Published: 5 November 2002
PDF: 9 pages
Proc. SPIE 4802, Organic Photorefractive and Photosensitive Materials for Holographic Applications, (5 November 2002); doi: 10.1117/12.453486
Show Author Affiliations
Jose-Luis Maldonado, Optical Sciences Ctr./Univ. of Arizona (United States)
Max Bishop, Univ. of Arizona (United States)
Canek Fuentes-Hernandez, Optical Sciences Ctr./Univ. of Arizona (United States)
Benoit Domercq, Optical Sciences Ctr./Univ. of Arizona (United States)
Stephen Barlow, Univ. of Arizona (United States)
S. Thayumanavan, Univ. of Arizona (United States)
Massimo Malagoli, Univ. of Arizona (United States)
Mariappan Manoharan, Univ. of Arizona (United States)
Jean-Luc Bredas, Univ. of Arizona (United States)
Seth R. Marder, Univ. of Arizona (United States)
Bernard Kippelen, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 4802:
Organic Photorefractive and Photosensitive Materials for Holographic Applications
Klaus Meerholz, Editor(s)

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