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Ding, Feng
IBS - Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Theoretical methods development for materials studies.
  • The formation mechanism of various carbon materials, from fullerene to carbon nanotube and graphene.
  • Kinetics and thermodynamics of materials growth and etching.
  • The structure, properties and fundamentals of nanomaterials.
  • The experimental synthesis of carbon nanotubes.

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Composition and phase engineering of metal chalcogenides and phosphorous chalcogenides

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Title
Composition and phase engineering of metal chalcogenides and phosphorous chalcogenides
Author
Zhou, JiadongZhu, ChaoZhou, YaoDong, JichenLi, PeilingZhang, ZhaoweiWang, ZhenLin, Yung-ChangShi, JiaZhang, RunwuZheng, YanzhenYu, HuimeiTang, BijunLiu, FucaiWang, LinLiu, LiweiLiu, Gui-BinHu, WeidaGao, YanfengYang, HaitaoGao, WeiboLu, LiWang, YeliangSuenaga, KazuLiu, GuangtongDing, FengYao, YuguiLiu, Zheng
Issue Date
2022-06
Publisher
NATURE PORTFOLIO
Citation
NATURE MATERIALS
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. A competitive-chemical-reaction-based growth mechanism by controlling the kinetic parameters can easily realize the growth of transition metal chalcogenides and transition metal phosphorous chalcogenides with different compositions and phases.
URI
https://scholarworks.unist.ac.kr/handle/201301/58855
DOI
10.1038/s41563-022-01291-5
ISSN
1476-1122
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