Efficient phonon cascades in WSe2 monolayers

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

Format: Article
Diterbitkan: Nature Portfolio 2021-01-01

Deskripsi

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.