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Theory of low-field hopping mobility in organic solids with energetic and positional disorder

✍ Scribed by I. I. Fishchuk; A. Kadashchuk; H. Bässler

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
400 KB
Volume
3
Category
Article
ISSN
1862-6351

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✦ Synopsis

Abstract

The influence of superimposed energetic and positional disorder on the field dependence of drift mobility in disordered organic solids is considered for the first time analytically by an Effective Medium theory. We find that the negative field dependence of the drift mobility at low fields is a genuine property of the nondispersive hopping transport in three‐dimensional disordered organic solids and caused by positional disorder. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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✍ P. E. Parris; D. H. Dunlap; V. M. Kenkre 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 140 KB 👁 2 views

The time-of-flight mobility of photoinjected charges in molecularly doped polymers obeys a Poole-Frenkel law, m ϰ exp( g E), which is commonly viewed as arising from hopping transport among sites with a large degree of energetic disorder. Recent theoretical investigations have focused on long-range