Radiative pattern of intralayer and interlayer excitons in two-dimensional WS₂/WSe₂ heterostructure.

ABSTRACT: Two-dimensional (2D) heterostructures (HS) formed by transition-metal dichalcogenide (TMDC) monolayers offer a unique platform for the study of intralayer and interlayer excitons as well as moiré-pattern-induced features. Particularly, the dipolar charge-transfer exciton comprising an electron and a hole, which are confined to separate layers of 2D semiconductors and Coulomb-bound across the heterojunction interface, has drawn considerable attention in the research community. On the one hand, it bears significance for optoelectronic devices, e.g. in terms of charge carrier extraction from photovoltaic devices. On the other hand, its spatially indirect nature and correspondingly high longevity among excitons as well as its out-of-plane dipole orientation render it attractive for excitonic B

SUBMITTER: Aly MA 

PROVIDER: S-EPMC9050751 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature