Nature Communications (Jan 2020)

Ultra-thin van der Waals crystals as semiconductor quantum wells

  • Johanna Zultak,
  • Samuel J. Magorrian,
  • Maciej Koperski,
  • Alistair Garner,
  • Matthew J. Hamer,
  • Endre Tóvári,
  • Kostya S. Novoselov,
  • Alexander A. Zhukov,
  • Yichao Zou,
  • Neil R. Wilson,
  • Sarah J. Haigh,
  • Andrey V. Kretinin,
  • Vladimir I. Fal’ko,
  • Roman Gorbachev

DOI
https://doi.org/10.1038/s41467-019-13893-w
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 6

Abstract

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A plethora of solid-state nanodevices rely on engineering the quantization of electrons in quantum wells. Here, the authors leverage the thickness of exfoliated 2D crystals to control the quantum well dimensions in few-layer semiconductor InSe and investigate the resonance features in the tunnelling current, photoabsorption and light emission spectra.