Moire-engineered light-matter interactions in MoS₂/WSe₂ heterobilayers at room temperature.

ABSTRACT: Moiré superlattices in van der Waals heterostructures represent a highly tunable quantum system, attracting substantial interest in both many-body physics and device applications. However, the influence of the moiré potential on light-matter interactions at room temperature has remained largely unexplored. In our study, we demonstrate that the moiré potential in MoS₂/WSe₂ heterobilayers facilitates the localization of interlayer exciton (IX) at room temperature. By performing reflection contrast spectroscopy, we demonstrate the importance of atomic reconstruction in modifying intralayer excitons, supported by the atomic force microscopy experiment. When decreasing the twist angle, we observe that the IX lifetime becomes longer and light emission gets enhanced, indicat

SUBMITTER: Lin Q 

PROVIDER: S-EPMC11464769 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature