DataVXACS Applied Electronic MaterialsPaper
journal article·2024-02-27Open access

Influence of the Deposition Rate on the Alignment and Performance of Perylene-3,4,9,10-tetracarboxylic Tetraethyl Ester in an Organic Light Emitting Diode

David Becker, Patrick Meier, Andreas Kuhlmann, Christian Sternemann, Harald Bock, Hans-Georg Steinrück, Heinz-Siegfried Kitzerow

ACS Applied Electronic Materials· Volume 6· Issue 2
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Source abstract

Abstract

The structural properties of perylene-3,4,9,10-tetracarboxylic tetraethyl ester as an emitter layer of organic light emitting diodes are investigated by grazing incidence wide-angle X-ray scattering and angular dependent photoluminescence measurements. Comparison of the results with previous X-ray investigations on single crystals of the same compound indicates the coexistence of the columnar phase that is found in single crystals with another columnar phase, which exhibits a slightly larger unit cell. The appearance of the latter phase can be reduced by smaller deposition rates of the organic layer. Consequently, slow evaporation results in a better electroluminescence efficiency.
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Research context

Materials processing

OpenAlex topics: Luminescence and Fluorescent Materials · Organic Electronics and Photovoltaics · Molecular Junctions and Nanostructures

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Faculty of Science, Paderborn University, Warburger Str. 100, Paderborn 33098, Germany

Institute for a Sustainable Hydrogen Economy (INW),Forschungszentrum Jülich GmbH, Am Brainergy Park 4, Jülich 52428, Germany

RWTH Aachen University, Institute of Physical Chemistry, Landoltweg 2, Aachen 52074, Germany

Fakultät Physik/DELTA, Technische Universität Dortmund, Maria-Goeppert-Mayer-Str. 2, Dortmund 44227, Germany

Centre de Recherche Paul Pascal, CNRS, Université de Bordeaux, 115 Avenue du Docteur Albert Schweitzer, Pessac 33600, France

Funding

Bundesministerium f?r Bildung und Forschung · Verband der Chemischen Industrie

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