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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Coupled 3D master equation and 1D drift‐diffusion approach for advanced OLED modeling
Authors: Zeder, Simon
Kirsch, Christoph
Aeberhard, Urs
Blülle, Balthasar
Jenatsch, Sandra
Ruhstaller, Beat
et. al: No
DOI: 10.1002/jsid.903
Published in: Journal of the Society for Information Display
Volume(Issue): 28
Issue: 5
Pages: 440
Pages to: 449
Issue Date: 21-Apr-2020
Publisher / Ed. Institution: Wiley
ISSN: 1071-0922
Language: English
Subjects: Drift-diffusion; Excitons; Master equation; OLED
Subject (DDC): 621.3: Electrical engineering and electronics
Abstract: A novel simulation approach for excitonic organic light‐emitting diodes (OLEDs) is established by combining a continuous one‐dimensional (1D) drift‐diffusion (DD) model for the charge carrier dynamics with a three‐dimensional (3D) master equation (ME) model describing the exciton dynamics in a multilayer OLED stack with an additional coupling to a thin‐film optics solver. This approach effectively combines the computational efficiency of the 1D DD solver with the physical accuracy of a discrete 3D ME model, where excitonic long‐range interactions for energy transfer can be taken into account. The coupling is established through different possible charge recombination types as well as the carrier densities themselves. We show that such a hybrid approach can efficiently and accurately describe steady‐state and transient behavior of optoelectronic devices reported in literature. Such a tool will facilitate the optimization and characterization of multilayer OLEDs and other organic semiconductor devices.
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Appears in Collections:Publikationen School of Engineering

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