Temperature-Dependent Electronic Ground-State Charge Transfer in van der Waals Heterostructures.

ABSTRACT: Electronic charge rearrangement between components of a heterostructure is the fundamental principle to reach the electronic ground state. It is acknowledged that the density of state distribution of the components governs the amount of charge transfer, but a notable dependence on temperature is not yet considered, particularly for weakly interacting systems. Here, it is experimentally observed that the amount of ground-state charge transfer in a van der Waals heterostructure formed by monolayer MoS₂ sandwiched between graphite and a molecular electron acceptor layer increases by a factor of 3 when going from 7 K to room temperature. State-of-the-art electronic structure calculations of the full heterostructure that accounts for nuclear thermal fluctuations reveal intracomponent

SUBMITTER: Park S 

PROVIDER: S-EPMC11468622 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature