Efficient phonon cascades in WSe2 monolayers

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 int...

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Bibliographic Details
Main Authors: Ioannis Paradisanos, Gang Wang, Evgeny M. Alexeev, Alisson R. Cadore, Xavier Marie, Andrea C. Ferrari, Mikhail M. Glazov, Bernhard Urbaszek
Format: article
Language:EN
Published: Nature Portfolio 2021
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Online Access:https://doaj.org/article/bd25958c760e4316a5cc3edfd9b80af8
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Summary: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.