Finite-Bandwidth Calculations for Charge Carrier Mobility in Organic Crystals

TL;DR

This paper investigates how finite bandwidth influences the temperature dependence of charge carrier mobility in pure organic crystals, focusing on impurity scattering effects and combining band and polaronic concepts.

Contribution

It introduces a simplified model to analyze finite-bandwidth effects on mobility, integrating band and polaronic theories for the first time.

Findings

Finite bandwidth affects mobility temperature dependence.

Impurity scattering plays a significant role.

Combined band-polaron model offers new insights.

Abstract

Finite-bandwidth effects on the temperature dependence of the mobility of injected carriers in pure organic crystals are explored for a simplifed case of impurity scattering. Temperature-dependent bandwidth effects are discussed briefly through a simplified combination of band and polaronic concepts.