Heterocontact-Triggered 1H to 1T' Phase Transition in CVD-Grown Monolayer MoTe₂: Implications for Low Contact Resistance Electronic Devices.

ABSTRACT: Single-layer molybdenum ditelluride (MoTe₂) has attracted attention due to the smaller energy difference between the semiconducting (1H) and semimetallic (1T') phases with respect to other two-dimensional transition metal dichalcogenides (TMDs). Understanding the phenomenon of polymorphism between these structural phases is of great fundamental and practical importance. In this paper, we report a 1H to 1T' phase transition occurring during the chemical vapor deposition (CVD) synthesis of single-layer MoTe₂ at 730 °C. The transformation originates at the heterocontact between monoclinic and hexagonal crystals and progresses to either yield a partial or complete 1H to 1T' phase transition. Microscopic and spectroscopic analyses of the MoTe₂ crystals reveal th

SUBMITTER: Khaustov VO 

PROVIDER: S-EPMC11348416 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature