Scaling theory for percolative charge transport in disordered molecular semiconductors

J. Cottaar, L.J.A. Koster, R. Coehoorn, P.A. Bobbert

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78 Citaten (Scopus)
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Samenvatting

We present a scaling theory for charge transport in disordered molecular semiconductors that extends percolation theory by including bonds with conductances close to the percolating one in the random-resistor network representing charge hopping. A general and compact expression is given for the charge mobility for Miller-Abrahams and Marcus hopping on different lattices with Gaussian energy disorder, with parameters determined from numerically exact results. The charge-concentration dependence is universal. The model-specific temperature dependence can be used to distinguish between the hopping models.
Originele taal-2Engels
Artikelnummer136601
Pagina's (van-tot)136601-1/4
TijdschriftPhysical Review Letters
Volume107
Nummer van het tijdschrift13
DOI's
StatusGepubliceerd - 2011

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