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 - Archive ouverte HAL Access content directly
Journal Articles ACS Applied Electronic Materials Year : 2024

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

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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Tuesday, July 30, 2024
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Tuesday, July 30, 2024
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hal-04537695 , version 1 (08-04-2024)

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David Becker, Patrick Meier, Andreas Kuhlmann, Christian Sternemann, Harald Bock, et al.. 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. ACS Applied Electronic Materials, 2024, 6 (2), pp.1234-1243. ⟨10.1021/acsaelm.3c01586⟩. ⟨hal-04537695⟩

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