Metastable 1T′-phase group VIB transition metal dichalcogenide crystals

Zhuangchai Lai; Qiyuan He; Thu Ha Tran; D. V.Maheswar Repaka; Dong Dong Zhou; Ying Sun; Shibo Xi; Yongxin Li; Apoorva Chaturvedi; Chaoliang Tan; Bo Chen; Gwang Hyeon Nam; Bing Li; Chongyi Ling; Wei Zhai; Zhenyu Shi; Dianyi Hu; Vinay Sharma; Zhaoning Hu; Ye Chen; Zhicheng Zhang; Yifu Yu; Xiao Renshaw Wang; Raju V. Ramanujan; Yanming Ma; Kedar Hippalgaonkar; Hua Zhang

doi:10.1038/s41563-021-00971-y

Metastable 1T′-phase group VIB transition metal dichalcogenide crystals

Zhuangchai Lai
, Qiyuan He
, Thu Ha Tran
, D. V.Maheswar Repaka
, Dong Dong Zhou
, Ying Sun
, Shibo Xi
, Yongxin Li
, Apoorva Chaturvedi
, Chaoliang Tan
, Bo Chen
, Gwang Hyeon Nam
, Bing Li
, Chongyi Ling
, Wei Zhai
, Zhenyu Shi
, Dianyi Hu
, Vinay Sharma
, Zhaoning Hu
, Ye Chen

Zhicheng Zhang, Yifu Yu, Xiao Renshaw Wang, Raju V. Ramanujan, Yanming Ma, Kedar Hippalgaonkar, Hua Zhang

Research output: Journal article publication › Journal article › Academic research › peer-review

209 Citations (Scopus)

Abstract

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, WS_2xSe_2(1−x) and MoS_2xSe_2(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.

Original language	English
Pages (from-to)	1113-1120
Number of pages	8
Journal	Nature Materials
Volume	20
Issue number	8
DOIs	https://doi.org/10.1038/s41563-021-00971-y
Publication status	Published - Aug 2021

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1038/s41563-021-00971-y

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Lai, Z., He, Q., Tran, T. H., Repaka, D. V. M., Zhou, D. D., Sun, Y., Xi, S., Li, Y., Chaturvedi, A., Tan, C., Chen, B., Nam, G. H., 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(8), 1113-1120. https://doi.org/10.1038/s41563-021-00971-y

@article{68b737b51b334070a6efec2e85f23c0f,

title = "Metastable 1T′-phase group VIB transition metal dichalcogenide crystals",

abstract = "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.",

author = "Zhuangchai Lai and Qiyuan He and Tran, \{Thu Ha\} and Repaka, \{D. V.Maheswar\} and Zhou, \{Dong Dong\} and Ying Sun and Shibo Xi and Yongxin Li and Apoorva Chaturvedi and Chaoliang Tan and Bo Chen and Nam, \{Gwang Hyeon\} and Bing Li and Chongyi Ling and Wei Zhai and Zhenyu Shi and Dianyi Hu and Vinay Sharma and Zhaoning Hu and Ye Chen and Zhicheng Zhang and Yifu Yu and \{Renshaw Wang\}, Xiao and Ramanujan, \{Raju V.\} and Yanming Ma and Kedar Hippalgaonkar and Hua Zhang",

note = "Funding Information: H.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{\textquoteright}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. We also thank W. Fernando for his generosity in providing us with his PhD thesis for our reference and S. Morris for the helpful discussions. We acknowledge the Facility for Analysis, Characterization, Testing and Simulation, Nanyang Technological University, Singapore, for use of their electron microscopy and X-ray facilities. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Nature Limited.",

year = "2021",

month = aug,

doi = "10.1038/s41563-021-00971-y",

language = "English",

volume = "20",

pages = "1113--1120",

journal = "Nature Materials",

issn = "1476-1122",

publisher = "Nature Publishing Group",

number = "8",

}

Lai, Z, He, Q, Tran, TH, Repaka, DVM, Zhou, DD, Sun, Y, Xi, S, Li, Y, Chaturvedi, A, Tan, C, Chen, B, Nam, GH, Li, B, Ling, C, Zhai, W, Shi, Z, Hu, D, Sharma, V, Hu, Z, Chen, Y, Zhang, Z, Yu, Y, Renshaw Wang, X, Ramanujan, RV, Ma, Y, Hippalgaonkar, K & Zhang, H 2021, 'Metastable 1T′-phase group VIB transition metal dichalcogenide crystals', Nature Materials, vol. 20, no. 8, pp. 1113-1120. https://doi.org/10.1038/s41563-021-00971-y

TY - JOUR

T1 - Metastable 1T′-phase group VIB transition metal dichalcogenide crystals

AU - Lai, Zhuangchai

AU - He, Qiyuan

AU - Tran, Thu Ha

AU - Repaka, D. V.Maheswar

AU - Zhou, Dong Dong

AU - Sun, Ying

AU - Xi, Shibo

AU - Li, Yongxin

AU - Chaturvedi, Apoorva

AU - Tan, Chaoliang

AU - Chen, Bo

AU - Nam, Gwang Hyeon

AU - Li, Bing

AU - Ling, Chongyi

AU - Zhai, Wei

AU - Shi, Zhenyu

AU - Hu, Dianyi

AU - Sharma, Vinay

AU - Hu, Zhaoning

AU - Chen, Ye

AU - Zhang, Zhicheng

AU - Yu, Yifu

AU - Renshaw Wang, Xiao

AU - Ramanujan, Raju V.

AU - Ma, Yanming

AU - Hippalgaonkar, Kedar

AU - Zhang, Hua

N1 - Funding Information: H.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. We also thank W. Fernando for his generosity in providing us with his PhD thesis for our reference and S. Morris for the helpful discussions. We acknowledge the Facility for Analysis, Characterization, Testing and Simulation, Nanyang Technological University, Singapore, for use of their electron microscopy and X-ray facilities. Publisher Copyright: © 2021, The Author(s), under exclusive licence to Springer Nature Limited.

PY - 2021/8

Y1 - 2021/8

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85104751146

U2 - 10.1038/s41563-021-00971-y

DO - 10.1038/s41563-021-00971-y

M3 - Journal article

C2 - 33859384

AN - SCOPUS:85104751146

SN - 1476-1122

VL - 20

SP - 1113

EP - 1120

JO - Nature Materials

JF - Nature Materials

IS - 8

ER -

Metastable 1T′-phase group VIB transition metal dichalcogenide crystals

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