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2D materials

Ultrafast exciton dynamics

Time-resolved measurements of the exciton dynamics in tungsten diselenide monolayers reveal ultrafast radiative recombination of the exciton ground state (150 fs) and the interplay between optically bright and dark excitons.

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Figure 1: Schematic of the two-colour pump–probe experiment that reveals the ultrafast exciton dynamics in a WSe2 monolayer.


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Correspondence to Xavier Marie or Bernhard Urbaszek.

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Marie, X., Urbaszek, B. Ultrafast exciton dynamics. Nature Mater 14, 860–861 (2015).

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