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

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.