Nature Communications (Jan 2021)

Efficient phonon cascades in WSe2 monolayers

  • Ioannis Paradisanos,
  • Gang Wang,
  • Evgeny M. Alexeev,
  • Alisson R. Cadore,
  • Xavier Marie,
  • Andrea C. Ferrari,
  • Mikhail M. Glazov,
  • Bernhard Urbaszek

DOI
https://doi.org/10.1038/s41467-020-20244-7
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

Read online

The primary stages of carrier relaxation in atomically thin transition metal dichalcogenides are hardly accessible due to their fast timescales. Here, the authors measure the first stages of carrier–phonon interaction in monolayer WSe2 via a series of periodic maxima in the hot photoluminescence intensity, assigned to phonon cascades.