Synthesis-Related Nanoscale Defects in Mo-Based Janus Monolayers Revealed by Cross-Correlated AFM and TERS Imaging.

ABSTRACT: 2D Janus transition metal dichalcogenides (TMDs) are promising candidates for various applications including non-linear optics, energy harvesting, and catalysis. These materials are usually synthesized via chemical conversion of pristine TMDs. Nanometer-scale characterization of the obtained Janus materials' morphology and local composition is crucial for both the synthesis optimization and the future device applications. In this work, we present the results of cross-correlated atomic force microscopy (AFM) and tip-enhanced Raman spectroscopy (TERS) study of Janus monolayers synthesized by the hydrogen plasma-assisted chemical conversion of MoSe₂ and MoS₂. We demonstrate that the choice of both the growth substrate and the starting TMD influences the residual strain,

SUBMITTER: Zhang T 

PROVIDER: S-EPMC12444857 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature