Feasible Structure Manipulation of Vanadium Selenide into VSe₂ on Au(111).

ABSTRACT: Vanadium diselenide (VSe₂), a member of the transition metal dichalcogenides (TMDs), is proposed with intriguing properties. However, a comprehensive investigation of VSe₂ (especially regarding on the growth mechanism) is still lacking. Herein, with the molecular beam epitaxy (MBE) measures frequently utilized in surface science, we have successfully synthesized the single-layer VSe₂ on Au(111) and revealed its structural transformation using a combination of scanning tunneling microscopy (STM) and density functional theory (DFT). Initially, formation of the honeycomb structure is observed with the moiré periodicity, which is assigned to VSe₂. Followed by stepwise annealing, defective structures with streaked patterns start to emerge due to the d

SUBMITTER: Huang C 

PROVIDER: S-EPMC9332180 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature