Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures

J. Binder; J. Howarth; F. Withers; M. R. Molas; T. Taniguchi; K. Watanabe; C. Faugeras; A. Wysmolek; M. Danovich; V. I. Fal’ko; A. K. Geim; K. S. Novoselov; M. Potemski; A. Kozikov

doi:10.1038/s41467-019-10323-9

Nature Communications (May 2019)

Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures

J. Binder,
J. Howarth,
F. Withers,
M. R. Molas,
T. Taniguchi,
K. Watanabe,
C. Faugeras,
A. Wysmolek,
M. Danovich,
V. I. Fal’ko,
A. K. Geim,
K. S. Novoselov,
M. Potemski,
A. Kozikov

Affiliations

J. Binder: Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
J. Howarth: School of Physics and Astronomy, University of Manchester
F. Withers: Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences, University of Exeter
M. R. Molas: Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
T. Taniguchi: National Institute for Materials Science
K. Watanabe: National Institute for Materials Science
C. Faugeras: Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
A. Wysmolek: Faculty of Physics, University of Warsaw
M. Danovich: School of Physics and Astronomy, University of Manchester
V. I. Fal’ko: School of Physics and Astronomy, University of Manchester
A. K. Geim: School of Physics and Astronomy, University of Manchester
K. S. Novoselov: School of Physics and Astronomy, University of Manchester
M. Potemski: Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
A. Kozikov: School of Physics and Astronomy, University of Manchester

DOI: https://doi.org/10.1038/s41467-019-10323-9
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 7

Abstract

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The authors present electroluminescence measurements of light-emitting devices based on van der Waals heterostructures, and observe a lower than expected threshold voltage for intralayer electroluminescence, attributed to non-radiative Auger-type recombination of interlayer excitons and resulting energy transfer.

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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