Paper
17 April 1998 Hole-trapping in molecularly doped polymers
Paul M. Borsenberger, William T. Gruenbaum, Liang-Bih Lin, Susan A. Visser
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Abstract
Hole mobilities have been measured in tri-p-tolylamine (TTA) doped poly(styrene) containing different concentrations of di- p-tolyl-p-anisylamine (DTA) or tri-p-anisylamine (TAA). DTA and TAA are traps with depths of 0.08 and 0.22 eV, respectively. For low concentrations of DTA or TAA, the transport processes are trap controlled and the mobilities decrease with increasing trap concentration. For high TAA concentrations, however, the transport processes are dominated by trap-to-trap hopping and the mobilities increase with increasing trap concentrations. The threshold concentration for the transition from trap controlled to trap-to-trap transport is approximately 10-1. A transition to trap- to-trap hopping is not observed for TTA containing DTA. The results are discussed within the framework of the Hoesterey- Letson formalism and the recent simulations of Wolf et al. and Borsenberger et al.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul M. Borsenberger, William T. Gruenbaum, Liang-Bih Lin, and Susan A. Visser "Hole-trapping in molecularly doped polymers", Proc. SPIE 3281, Polymer Photonic Devices, (17 April 1998); https://doi.org/10.1117/12.305424
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KEYWORDS
Polymers

Molecules

Oxidation

Picosecond phenomena

Process control

Coating

Dielectric breakdown

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