Nature Communications (Sep 2018)
Revealing the biexciton and trion-exciton complexes in BN encapsulated WSe2
Abstract
Owing to strong Coulomb interactions, atomically thin transition metal dichalcogenides host strongly bound excitonic complexes. Here, the authors report charge-neutral biexciton and negatively charged trion-exciton complexes in hBN encapsulated monolayer WSe2 by employing low-temperature photoluminescence spectroscopy.