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Metastable 1T'-phase group VIB transition metal dichalcogenide crystals.
Lai, Zhuangchai; He, Qiyuan; Tran, Thu Ha; Repaka, D V Maheswar; Zhou, Dong-Dong; Sun, Ying; Xi, Shibo; Li, Yongxin; Chaturvedi, Apoorva; Tan, Chaoliang; Chen, Bo; Nam, Gwang-Hyeon; Li, Bing; Ling, Chongyi; Zhai, Wei; Shi, Zhenyu; Hu, Dianyi; Sharma, Vinay; Hu, Zhaoning; Chen, Ye; Zhang, Zhicheng; Yu, Yifu; Renshaw Wang, Xiao; Ramanujan, Raju V; Ma, Yanming; Hippalgaonkar, Kedar; Zhang, Hua.
Afiliación
  • Lai Z; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
  • He Q; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Tran TH; Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China.
  • Repaka DVM; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Zhou DD; Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.
  • Sun Y; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, China.
  • Xi S; State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China.
  • Li Y; International Center for Computational Method & Software, College of Physics, Jilin University, Changchun, China.
  • Chaturvedi A; Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.
  • Tan C; School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore.
  • Chen B; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Nam GH; Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, China.
  • Li B; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
  • Ling C; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Zhai W; School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
  • Shi Z; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
  • Hu D; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
  • Sharma V; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
  • Hu Z; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Chen Y; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Zhang Z; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Yu Y; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Renshaw Wang X; Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, China.
  • Ramanujan RV; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Ma Y; Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, China.
  • Hippalgaonkar K; Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
  • Zhang H; Institute of Molecular Plus, Tianjin University, Tianjin, China.
Nat Mater ; 20(8): 1113-1120, 2021 Aug.
Article en En | MEDLINE | ID: mdl-33859384
Metastable 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.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Nat Mater Asunto de la revista: CIENCIA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: China
Texto completo
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Nat Mater Asunto de la revista: CIENCIA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: China