Polaronic theories for charge transport in disordered organic solids, particularly molecularly doped polymers, have been plagued by issues of internal consistency related to the magnitude of physical parameters. We present a natural resolution of the problem by showing that, in the presence of correlated disorder, polaronic carriers with binding energies Δ ~ 50 - 500 meV and transfer integrals J ~ 1 - 20 meV are completely consistent with the magnitudes of field and temperature dependent mobilities observed.
P. E. Parris et al., "Nature of Charge Carriers in Disordered Molecular Solids: Are Polarons Compatible with Observations?," Physical Review Letters, vol. 87, no. 12, pp. 126601/1-126601/4, American Physical Society (APS), Sep 2001.
The definitive version is available at http://dx.doi.org/10.1103/PhysRevLett.87.126601
Keywords and Phrases
Algorithms; Binding energy; Calculations; Carrier mobility; Charge carriers; Curve fitting; Electron transport properties; Electronic properties; Integral equations; Molecules; Polarons; Thermal effects; Disordered molecular solids; Molecularly doped polymers; Polaronic theories; Organic polymers
International Standard Serial Number (ISSN)
Article - Journal
© 2001 American Physical Society (APS), All rights reserved.