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Bulletin of the Lebedev Physics Institute

, Volume 46, Issue 7, pp 233–237 | Cite as

Radiative Recombination Mechanisms Involving Exciton States of the Direct Fundamental Absorption Edge in Bilayer WSe2

  • S. N. NikolaevEmail author
  • V. S. Krivobok
  • E. E. Onishchenko
  • M. A. Chernopitsskii
  • V. S. Bagaev
Article
  • 2 Downloads

Abstract

Methods for production of atomically thin WSe2 films and optical control of their thickness are developed. For two-monolayer-thick WSe2 films, photoluminescence spectra associated with the emission of exciton states of the direct fundamental absorption edge at a temperature of 5–70 K are measured. Along with the emission of intrinsic excitons of the bilayer, new defect-related emission lines are detected.

Keywords

layered semiconductors luminescence exciton multi-particle effects 

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Notes

Acknowledgments

This study was supported by the Russian Science Foundation, project no. 18-72-00235.

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Copyright information

© Allerton Press, Inc. 2019

Authors and Affiliations

  • S. N. Nikolaev
    • 1
    Email author
  • V. S. Krivobok
    • 1
  • E. E. Onishchenko
    • 1
  • M. A. Chernopitsskii
    • 1
  • V. S. Bagaev
    • 1
  1. 1.Lebedev Physical InstituteRussian Academy of SciencesMoscowRussia

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