A library of atomically thin metal chalcogenides

doi:10.1038/s41586-018-0008-3

	A library of atomically thin metal chalcogenides
	Zhou, Jiadong ; Lin, Junhao 1; Huang, Xiangwei 2; Zhou, Yao 3; Chen, Yu 4; Xia, Juan 4; Wang, Hong ; Xie, Yu ; Yu, Huimei 7; Lei, Jincheng
刊名	NATURE
	2018
卷号	556 期号:7701 页码:355
ISSN号	0028-0836
DOI	10.1038/s41586-018-0008-3
英文摘要	Investigations of two-dimensional transition-metal chalcogenides (TMCs) have recently revealed interesting physical phenomena, including the quantum spin Hall effect(1,2), valley polarization(3,4) and two-dimensional superconductivity(5), suggesting potential applications for functional devices(6-10). However, of the numerous compounds available, only a handful, such as Mo- and W-based TMCs, have been synthesized, typically via sulfurization(11-15), selenization(16,17) and tellurization(18) of metals and metal compounds. Many TMCs are difficult to produce because of the high melting points of their metal and metal oxide precursors. Molten-salt-assisted methods have been used to produce ceramic powders at relatively low temperature(19) and this approach(20) was recently employed to facilitate the growth of monolayer WS2 and WSe2. Here we demonstrate that molten-salt-assisted chemical vapour deposition can be broadly applied for the synthesis of a wide variety of two-dimensional (atomically thin) TMCs. We synthesized 47 compounds, including 32 binary compounds (based on the transition metals Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Pt, Pd and Fe), 13 alloys (including 11 ternary, one quaternary and one quinary), and two heterostructured compounds. We elaborate how the salt decreases the melting point of the reactants and facilitates the formation of intermediate products, increasing the overall reaction rate. Most of the synthesized materials in our library are useful, as supported by evidence of superconductivity in our monolayer NbSe2 and MoTe2 samples(21,22) and of high mobilities in MoS2 and ReS2. Although the quality of some of the materials still requires development, our work opens up opportunities for studying the properties and potential application of a wide variety of two-dimensional TMCs.
学科主题	Multidisciplinary Sciences
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000430285200047
资助机构	This work was supported by the Singapore National Research Foundation under NRF award number NRF-NRFF2013-08, Tier 2 MOE2016-T2-2-153, MOE2016-T2-1-131, MOE2015-T2-2-007, Tier 1 RG164/15, Tier 1 RG4/17, CoE Industry Collaboration Grant WINTECH-NTU and the AStar QTE programme. T.Y. acknowledges MOE Tier 1 RG100/15. J.L. and K.S. acknowledge the financial support of JST-ACCEL and JSPS KAKENHI (JP16H06333 and P16382). The work in SICCAS was supported by the National Key Research and Development Program of China (2016YFB0700204) and the National Natural Science Foundation of China (51502327). The work at IOP was supported by the Ministry of Science and Technology of China (grant numbers 2014CB920904, 2015CB921101 and 2016YFA0300600), the National Natural Science Foundation of China (grant numbers 11174340, 912212012, 11527806 and 91421303) and the Chinese Academy of Sciences (grant numbers XDB07010100). H.L. acknowledges the Singapore National Research Foundation for support under NRF award number NRF-NRFF2013-03. The work at Rice was supported by the US Department of Energy (DE-SC0012547) and by the R. Welch Foundation (C-1590). ; This work was supported by the Singapore National Research Foundation under NRF award number NRF-NRFF2013-08, Tier 2 MOE2016-T2-2-153, MOE2016-T2-1-131, MOE2015-T2-2-007, Tier 1 RG164/15, Tier 1 RG4/17, CoE Industry Collaboration Grant WINTECH-NTU and the AStar QTE programme. T.Y. acknowledges MOE Tier 1 RG100/15. J.L. and K.S. acknowledge the financial support of JST-ACCEL and JSPS KAKENHI (JP16H06333 and P16382). The work in SICCAS was supported by the National Key Research and Development Program of China (2016YFB0700204) and the National Natural Science Foundation of China (51502327). The work at IOP was supported by the Ministry of Science and Technology of China (grant numbers 2014CB920904, 2015CB921101 and 2016YFA0300600), the National Natural Science Foundation of China (grant numbers 11174340, 912212012, 11527806 and 91421303) and the Chinese Academy of Sciences (grant numbers XDB07010100). H.L. acknowledges the Singapore National Research Foundation for support under NRF award number NRF-NRFF2013-03. The work at Rice was supported by the US Department of Energy (DE-SC0012547) and by the R. Welch Foundation (C-1590).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24985]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Nanyang Technol Univ, Sch Mat Sci & Engn, Ctr Programmable Mat, Singapore, Singapore 2.Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan 3.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai, Peoples R China 5.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore, Singapore 6.Xie, Yu; Lei, Jincheng; Yakobson, Boris I.] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX USA 7.Xie, Yu; Lei, Jincheng; Yakobson, Boris I.] Rice Univ, Dept Chem, Houston, TX USA 8.East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai, Peoples R China 9.Natl Univ Singapore, Ctr Adv Mat 2D, Singapore, Singapore 10.Natl Univ Singapore, Graphene Res Ctr, Singapore, Singapore
推荐引用方式 GB/T 7714	Zhou, Jiadong,Lin, Junhao,Huang, Xiangwei,et al. A library of atomically thin metal chalcogenides[J]. NATURE,2018,556(7701):355, +.
APA	Zhou, Jiadong.,Lin, Junhao.,Huang, Xiangwei.,Zhou, Yao.,Chen, Yu.,...&Liu, Zheng.(2018).A library of atomically thin metal chalcogenides.NATURE,556(7701),355.
MLA	Zhou, Jiadong,et al."A library of atomically thin metal chalcogenides".NATURE 556.7701(2018):355.