Nature Communications (May 2017)

Coulomb engineering of the bandgap and excitons in two-dimensional materials

  • Archana Raja,
  • Andrey Chaves,
  • Jaeeun Yu,
  • Ghidewon Arefe,
  • Heather M. Hill,
  • Albert F. Rigosi,
  • Timothy C. Berkelbach,
  • Philipp Nagler,
  • Christian Schüller,
  • Tobias Korn,
  • Colin Nuckolls,
  • James Hone,
  • Louis E. Brus,
  • Tony F. Heinz,
  • David R. Reichman,
  • Alexey Chernikov

DOI
https://doi.org/10.1038/ncomms15251
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 7

Abstract

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Electronic bandgap tuning in semiconductors enables key functionalities in solid-state devices. Here, the authors present a strategy to control the bandgap of atomically thin WS2 and WSe2semiconductors via manipulation of the surrounding dielectric environment rather than by modifications of the materials themselves.