Interface coupling in Au-supported MoS₂-WS₂ heterobilayers grown by pulsed laser deposition.

ABSTRACT: Van der Waals heterostructures of transition metal dichalcogenides (TMDs) are promising systems for engineering functional layered 2D materials with tailored properties. In this work, we study the growth of WS₂/MoS₂ and MoS₂/WS₂ heterobilayers by pulsed laser deposition (PLD) under ultra-high vacuum conditions. Using Au(111) as growth substrate, we investigated the heterobilayer morphology and structure at the nanoscale by in situ scanning tunneling microscopy. Our experiments show that the heterostructure growth can be controlled with high coverage and thickness sensitivity by tuning the number of laser pulses in the PLD process. Raman spectroscopy complemented our investigation, revealing the effect of the interaction with the metallic s

SUBMITTER: D'Agosta P 

PROVIDER: S-EPMC10134180 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature