Identification of Ubiquitously Present Polymeric Adlayers on 2D Transition Metal Dichalcogenides.

ABSTRACT: The interest in 2D materials continues to grow across numerous scientific disciplines as compounds with unique electrical, optical, chemical, and thermal characteristics are being discovered. All these properties are governed by an all-surface nature and nanoscale confinement, which can easily be altered by extrinsic influences, such as defects, dopants or strain, adsorbed molecules, and contaminants. Here, we report on the ubiquitous presence of polymeric adlayers on top of layered transition metal dichalcogenides (TMDs). The atomically thin layers, not evident from common analytic methods, such as Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), or scanning electron microscopy (SEM), could be identified with highly resolved time-of-flight secondary ion mass spectrometry (TOF-S

SUBMITTER: Tilmann R 

PROVIDER: S-EPMC10278175 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature