Title: On the role of polar molecules and the barrier for charge injection in OLEDs
Authors : Altazin, Stéphane
Züfle, Simon
Knapp, Evelyne
Kirsch, Christoph
Schmidt, Tobias D.
Jäger, Lars
Brütting, Wolfgang
Ruhstaller, Beat
Proceedings: Proceedings of SPIE, Organic Light Emitting Materials and Devices XX
Volume(Issue) : 9941
Conference details: SPIE Organic Photonics + Electronics, San Diego, 28 August–1 September, 2016
Editors of the parent work: So, Franky
Adachi, Chihaya
Kim, Jang-Joo
Issue Date: 23-Sep-2016
License (according to publishing contract) : Licence according to publishing contract
Type of review: Not specified
Language : English
Subjects : Organic light-emitting diode; Molecule; Simulation; Electron transport
Subject (DDC) : 621.3: Electrical engineering and electronics
Abstract: Many electron transport layer materials (ETL) employed in state of the art organic light emitting diodes (OLEDs) are known to be polar. We combine for the first time simulations and electrical characterization of OLEDs based on polar ETL, in order to understand the impact of such materials on the device operation. Depending on the orientation of the dipole orientation, simulations predict either a benefit or a disadvantage of the polar ETL for the device performance. We also show that OLEDs featuring a polar material are perfectly suited for extracting mobility activation energy and Injection barrier from the anode to the ETL.
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Publication type: Conference Paper
DOI : 10.1117/12.2238620
ISBN: 9781510602731
URI: https://digitalcollection.zhaw.ch/handle/11475/6925
Appears in Collections:Publikationen School of Engineering

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