Higher order effects in organic LEDs with sub-bandgap turn-on

Sebastian Engmann; Adam J. Barito; Emily G. Bittle; Noel C. Giebink; Lee J. Richter; David J. Gundlach

doi:10.1038/s41467-018-08075-z

Nature Communications (Jan 2019)

Higher order effects in organic LEDs with sub-bandgap turn-on

Sebastian Engmann,
Adam J. Barito,
Emily G. Bittle,
Noel C. Giebink,
Lee J. Richter,
David J. Gundlach

Affiliations

Sebastian Engmann: Theiss Research
Adam J. Barito: Nanoscale Device Characterization Division, National Institute of Standards and Technology
Emily G. Bittle: Nanoscale Device Characterization Division, National Institute of Standards and Technology
Noel C. Giebink: Department of Electrical Engineering, The Pennsylvania State University, Electrical Engineering West
Lee J. Richter: Materials Science and Engineering Division, National Institute of Standards and Technology
David J. Gundlach: Nanoscale Device Characterization Division, National Institute of Standards and Technology

DOI: https://doi.org/10.1038/s41467-018-08075-z
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 10

Abstract

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Conflicting mechanisms have been proposed to explain the sub-bandgap turn-on behaviour of heterojunction organic light-emitting diodes (OLEDs). Here, by probing and modifying the OLED heterojunction, the authors show that band-to-band recombination is the most likely radiative recombination process.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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