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Volume 174, 2014
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Lasing of Tamm states in highly efficient organic devices based on small-molecule organic semiconductors

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Abstract

We discuss approaches to increase the light outcoupling efficiency in organic microcavity (MC) lasers and organic light-emitting diodes (OLEDs). We find that the introduction of metals into the cavities leads to additional Tamm-plasmon polariton modes, while the corrugation of metal contacts, such as perforated μ-size holes or a periodic array of metal stripes, leads to 2D confinement of the cavity modes, which in turn reduces the lasing threshold in MCs. Furthermore, we elucidate light loss mechanisms in OLEDs and reveal how external dielectric layers and periodic gratings can be used to enhance outcoupling from the OLED cavity.

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Submitted
05 May 2014
Accepted
04 Jun 2014
First published
04 Jun 2014

Faraday Discuss., 2014,174, 183-201
Article type
Paper
Author version available

Lasing of Tamm states in highly efficient organic devices based on small-molecule organic semiconductors

R. Brückner, V. G. Lyssenko, S. Hofmann and K. Leo, Faraday Discuss., 2014, 174, 183
DOI: 10.1039/C4FD00094C

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