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Issue 17, 2018
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Large-scale synthesis of 2D metal dichalcogenides

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In recent years, 2D metal dichalcogenides (2DMDs, MX2: M = Mo, W, Re, Nb; X = S, Se, Te, etc.) have attracted significant attention due to their diverse properties such as tunable bandgaps and valley polarization, showing highly promising applications in electronics and optoelectronics. For practical applications, the large-scale synthesis of 2DMDs is indispensable and therefore requires urgent research. In this review, the latest methods for the large-scale synthesis of 2DMDs are introduced including mechanical exfoliation, liquid phase methods and chemical vapour deposition (CVD). The CVD process can be classified as follows: direct growth via vapour phase deposition, chalcogenization of the deposited films of metal precursors on the substrate, and synthesis of large-scale 2DMDs on the treated substrate and on the molten substrate. Finally, some perspectives are provided for this exciting and fast-developing field, which indicate that the major existing obstacles preventing practical applications are the limited domain size, crystallinity, layer controllability and universality of the synthesis methods.

Graphical abstract: Large-scale synthesis of 2D metal dichalcogenides

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The article was received on 05 Feb 2018, accepted on 11 Apr 2018 and first published on 11 Apr 2018

Article type: Review Article
DOI: 10.1039/C8TC00620B
Citation: J. Mater. Chem. C, 2018,6, 4627-4640
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    Large-scale synthesis of 2D metal dichalcogenides

    J. Yu, X. Hu, H. Li, X. Zhou and T. Zhai, J. Mater. Chem. C, 2018, 6, 4627
    DOI: 10.1039/C8TC00620B

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