Exciton diffusion in energetically disordered organic materials

Stavros Athanasopoulos, Evguenia V. Emelianova, Alison B. Walker, David Beljonne

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

We implement a simple, continuous, analytical model for exciton hopping in an energetically disordered molecular landscape. The model is parameterized against atomistic and lattice Monte Carlo simulations based on quantum-chemical calculations. It captures the essential physics of exciton diffusion in disordered media at different temperatures and yields a universal scaling law of the diffusion length with the dimensionless disorder parameter given by the ratio of the energetic disorder width to the thermal energy.
Original languageEnglish
Article number195209
JournalPhysical Review B
Volume80
Issue number19
DOIs
Publication statusPublished - Nov 2009

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