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dc.contributor.authorLai, Zhuangchaien_US
dc.contributor.authorHe, Qiyuanen_US
dc.contributor.authorTran, Thu Haen_US
dc.contributor.authorRepaka, D. V. Maheswaren_US
dc.contributor.authorZhou, Dong-Dongen_US
dc.contributor.authorXi, Shiboen_US
dc.contributor.authorLi, Yongxinen_US
dc.contributor.authorChaturvedi, Apoorvaen_US
dc.contributor.authorTan, Chaoliangen_US
dc.contributor.authorChen, Boen_US
dc.contributor.authorNam, Gwang-Hyeonen_US
dc.contributor.authorLi, Bingen_US
dc.contributor.authorLing, Chongyien_US
dc.contributor.authorZhai, Weien_US
dc.contributor.authorShi, Zhenyuen_US
dc.contributor.authorHu, Dianyien_US
dc.contributor.authorSharma, Vinayen_US
dc.contributor.authorHu, Zhaoningen_US
dc.contributor.authorChen, Yeen_US
dc.contributor.authorZhang, Zhichengen_US
dc.contributor.authorYu, Yifuen_US
dc.contributor.authorWang, Renshaw Xiaoen_US
dc.contributor.authorRamanujan, Raju V.en_US
dc.contributor.authorMa, Yanmingen_US
dc.contributor.authorHippalgaonkar, Kedaren_US
dc.contributor.authorZhang, Huaen_US
dc.identifier.citationLai, Z., He, Q., Tran, T. H., Repaka, D. V. M., Zhou, D., Sun, Y., Xi, S., Li, Y., Chaturvedi, A., Tan, C., Chen, B., Nam, G., Li, B., Ling, C., Zhai, W., Shi, Z., Hu, D., Sharma, V., Hu, Z., ...Zhang, H. (2021). Metastable 1T′-phase group VIB transition metal dichalcogenide crystals. Nature Materials, 20, 1113-1120.
dc.description.abstractMetastable 1T′-phase transition metal dichalcogenides (1T′-TMDs) with semi-metallic natures have attracted increasing interest owing to their uniquely distorted structures and fascinating phase-dependent physicochemical properties. However, the synthesis of high-quality metastable 1T′-TMD crystals, especially for the group VIB TMDs, remains a challenge. Here, we report a general synthetic method for the large-scale preparation of metastable 1T′-phase group VIB TMDs, including WS2, WSe2, MoS2, MoSe2, WS2xSe2(1−x) and MoS2xSe2(1−x). We solve the crystal structures of 1T′-WS2, -WSe2, -MoS2 and -MoSe2 with single-crystal X-ray diffraction. The as-prepared 1T′-WS2 exhibits thickness-dependent intrinsic superconductivity, showing critical transition temperatures of 8.6 K for the thickness of 90.1 nm and 5.7 K for the single layer, which we attribute to the high intrinsic carrier concentration and the semi-metallic nature of 1T′-WS2. This synthesis method will allow a more systematic investigation of the intrinsic properties of metastable TMDs.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofNature Materialsen_US
dc.rights© 2021 The Author(s), under exclusive licence to Springer Nature Limited. All rights reserved. This paper was published in Nature Materials and is made available with permission of The Authors.en_US
dc.subjectEngineering::Materials::Metallic materialsen_US
dc.titleMetastable 1T′-phase group VIB transition metal dichalcogenide crystalsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.researchCenter for Programmable Materialsen_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsElectronic Devicesen_US
dc.subject.keywordsTwo-Dimensional Materialsen_US
dc.description.acknowledgementH.Z. acknowledges support from ITC via the Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), the Start-Up Grant (project no. 9380100) and grants (project nos. 9610478 and 1886921) from the City University of Hong Kong and the Science Technology and Innovation Committee of Shenzhen Municipality (grant no. JCYJ20200109143412311). Q.H. acknowledges the funding support from the Start-Up Grant (project no. 9610482) from the City University of Hong Kong. Y.S. and Y.M. acknowledge the funding support from the National Natural Science Foundation of China (under grant no. 11534003) and the Program for JLU Science and Technology Innovative Research Team and Science Challenge Project (no. TZ2016001). K.H. and D.V.M.R. acknowledge funding from the Accelerated Materials Development for Manufacturing Program at A*STAR via the AME Programmatic Fund by the Agency for Science, Technology and Research under grant no. A1898b0043. R.V.R. and V.S. acknowledge support by grants from the National Research Foundation, Prime Minister’s Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. X.R.W. acknowledges supports from Academic Research Fund Tier 2 (grant no. MOE-T2EP50120-006) from Singapore Ministry of Education.en_US
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