Modulation of New Excitons in Transition Metal Dichalcogenide-Perovskite Oxide System.

ABSTRACT: The exciton, a quasi-particle that creates a bound state of an electron and a hole, is typically found in semiconductors. It has attracted major attention in the context of both fundamental science and practical applications. Transition metal dichalcogenides (TMDs) are a new class of 2D materials that include direct band-gap semiconductors with strong spin-orbit coupling and many-body interactions. Manipulating new excitons in semiconducting TMDs could generate a novel means of application in nanodevices. Here, the observation of high-energy excitonic peaks in the monolayer-MoS₂ on a SrTiO₃ heterointerface generated by a new complex mechanism is reported, based on a comprehensive study that comprises temperature-dependent optical spectroscopies and first-principles ca

SUBMITTER: Yin X 

PROVIDER: S-EPMC6662271 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature