Nature of Charge Carriers in Disordered Molecular Solids: Are Polarons Compatible with Observations?
Abstract
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.
Recommended Citation
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 https://doi.org/10.1103/PhysRevLett.87.126601
Department(s)
Physics
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)
0031-9007
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2001 American Physical Society (APS), All rights reserved.
Publication Date
01 Sep 2001
