Accurate and fast master equation modeling of triplet-triplet annihilation in organic phosphorescent emission layers including correlations

Mahyar Taherpour; Clint van Hoesel; Reinder Coehoorn; Peter Bobbert

doi:10.1117/12.2644929

11 January 2023 Accurate and fast master equation modeling of triplet-triplet annihilation in organic phosphorescent emission layers including correlations

Mahyar Taherpour, Clint van Hoesel, Reinder Coehoorn, Peter Bobbert

Author Affiliations +

Proceedings Volume 12336, Frontiers in Luminescent Organic Semiconductor Materials and Devices; 123360C (2023) https://doi.org/10.1117/12.2644929
Event: SPIE Photonex, 2022, Birmingham, United Kingdom

Abstract

Triplet-triplet annihilation (TTA) gives rise to correlations in the positions of surviving excitons, which are ignored in the mean-field approximation of the master equation (ME). These correlations can in principle be accounted for exactly in Kinetic Monte Carlo (KMC) simulations, but these are computationally expensive. In this work, we present ME modeling of TTA that accounts for correlations. A comparison between our modeling and KMC simulations reveals the effect of correlations on the rates of radiative decay and TTA, and shows that our ME modeling is an accurate and computationally attractive alternative.

Conference Presentation

Citation Download Citation

Mahyar Taherpour, Clint van Hoesel, Reinder Coehoorn, and Peter Bobbert "Accurate and fast master equation modeling of triplet-triplet annihilation in organic phosphorescent emission layers including correlations", Proc. SPIE 12336, Frontiers in Luminescent Organic Semiconductor Materials and Devices, 123360C (11 January 2023); https://doi.org/10.1117/12.2644929

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