articleNano LettersMay 21, 2015GREEN OA

Monolayer PtSe 2 , a New Semiconducting Transition-Metal-Dichalcogenide, Epitaxially Grown by Direct Selenization of Pt

YWYeliang WangLLLinfei LiWYWei YaoSSShiru SongJSJia‐Tao Sun

Chinese Academy of Sciences · Collaborative Innovation Center of Quantum Matter · +7 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Single-layer transition-metal dichalcogenides (TMDs) receive significant attention due to their intriguing physical properties for both fundamental research and potential applications in electronics, optoelectronics, spintronics, catalysis, and so on. Here, we demonstrate the epitaxial growth of high-quality single-crystal, monolayer platinum diselenide (PtSe2), a new member of the layered TMDs family, by a single step of direct selenization of a Pt(111) substrate. A combination of atomic-resolution experimental characterizations and first-principle theoretic calculations reveals the atomic structure of the monolayer PtSe2/Pt(111). Angle-resolved photoemission spectroscopy measurements confirm for the first…

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Topics & keywords

Topics
Keywords
  • Monolayer
  • Epitaxy
  • Materials science
  • Valleytronics
  • Transition metal
  • Nanotechnology
  • Atomic layer epitaxy
  • Crystallography
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