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Composition and phase engineering of metal chalcogenides and phosphorous chalcogenides

*Corresponding author for this work
  • Nanyang Technological University
  • Southeast University, Nanjing
  • Beijing Institute of Technology
  • Institute for Basic Science
  • CAS - Institute of Chemistry
  • CAS - Institute of Physics
  • CAS - Shanghai Institute of Technical Physics
  • The University of Osaka
  • National University of Singapore
  • University of Science and Technology Beijing
  • East China University of Science and Technology
  • University of Electronic Science and Technology of China
  • Nanjing Tech University
  • Shanghai University
  • Songshan Lake Materials Laboratory
  • Ulsan National Institute of Science and Technology
  • Research Techno Plaza Singapore

Research output: Contribution to journalArticlepeer-review

Abstract

Two-dimensional (2D) materials with multiphase, multielement crystals such as transition metal chalcogenides (TMCs) (based on V, Cr, Mn, Fe, Cd, Pt and Pd) and transition metal phosphorous chalcogenides (TMPCs) offer a unique platform to explore novel physical phenomena. However, the synthesis of a single-phase/single-composition crystal of these 2D materials via chemical vapour deposition is still challenging. Here we unravel a competitive-chemical-reaction-based growth mechanism to manipulate the nucleation and growth rate. Based on the growth mechanism, 67 types of TMCs and TMPCs with a defined phase, controllable structure and tunable component can be realized. The ferromagnetism and superconductivity in FeXy can be tuned by the y value, such as superconductivity observed in FeX and ferromagnetism in FeS2 monolayers, demonstrating the high quality of as-grown 2D materials. This work paves the way for the multidisciplinary exploration of 2D TMPCs and TMCs with unique properties.

Original languageEnglish
Pages (from-to)450-458
Number of pages9
JournalNature Materials
Volume22
Issue number4
DOIs
Publication statusPublished - Apr 2023

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