Structural characterization of new 2D materials: single layer NiS2 and Janus NiOS
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下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-1926175544
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The objective of this proposal is to explore a novel class of 2D materials based on iron (Fe) and nickel (Ni) that do not naturally occur as freestanding atomically
thin layers or as bulk mineral compounds. In our recent experiments, we utilized in situ Grazing Incidence Surface X-ray Diffraction (GI-SXRD), scanning tunneling
microscopy (STM), Auger electron spectroscopy (AES), and electron diffraction techniques to characterize physical vapor deposition (PVD) grown 2D NiS2 and NiOS supported on Au(111). Our investigations also revealed that 2D FeS2 forms a Janus-type asymmetric material with FeOS composition, offering exciting
prospects for ferroelectric or spin-polarized properties. Here, we aim to show that NiS2 also forms 2D Janus oxy-sulfides with the classic X-M-X TMDC structure,
stabilized by the interaction with a suitable substrate, Au(111). Ultimately, we will benchmark a general experimental technique of synthesizing alloy Janus 2D
TMDCs of any d-block transition metal.
提供机构：
European Synchrotron Radiation Facility
创建时间：
2024-10-09
