Raman of 2D-MoS₂: Disentangling the Metallic Phase Conundrum.

ABSTRACT: 2D Molybdenum disulfide (2D-MoS₂) is thermodynamically stable and hence easily synthesized in its semiconducting 2H phase. In contrast, the metallic-phase 1T-MoS₂ is a highly sensitive, metastable, and complex phase that is not naturally occurring. This heightened sensitivity and instability have resulted in a widespread misrepresentation in academic literature. Based on the current understanding, the majority of Raman investigations incorrectly identify the spectrum of MoO₃ as 1T-MoS₂ due to the samples oxidation when exposed to intense laser irradiation in the presence of air, as commonly performed. Therefore, this work focuses on conducting a comprehensive Raman analysis of 1T-MoS₂ by investigating the impact of oxidizing atmosphere

SUBMITTER: Maddouri A 

PROVIDER: S-EPMC12641350 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature