Exciton diffusion in energetically disordered organic materials

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

Research output: Contribution to journalArticle

82 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.
LanguageEnglish
Article number195209
JournalPhysical Review B
Volume80
Issue number19
DOIs
StatusPublished - Nov 2009

Fingerprint

organic materials
Excitons
excitons
disorders
Scaling laws
diffusion length
Thermal energy
thermal energy
scaling laws
Analytical models
Physics
physics
simulation
Temperature
temperature
LDS 751
Monte Carlo simulation

Cite this

Exciton diffusion in energetically disordered organic materials. / Athanasopoulos, Stavros; Emelianova, Evguenia V.; Walker, Alison B.; Beljonne, David.

In: Physical Review B, Vol. 80, No. 19, 195209, 11.2009.

Research output: Contribution to journalArticle

Athanasopoulos, Stavros ; Emelianova, Evguenia V. ; Walker, Alison B. ; Beljonne, David. / Exciton diffusion in energetically disordered organic materials. In: Physical Review B. 2009 ; Vol. 80, No. 19.
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