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2020 年度 実績報告書

Synthesis of wafer-scale two-dimensional transition metal dichalcogenide single crystals for high-performance electronic devices

研究課題

研究課題/領域番号 19K15399
研究機関国立研究開発法人物質・材料研究機構

研究代表者

李 世勝  国立研究開発法人物質・材料研究機構, 若手国際研究センター, ICYS研究員 (90812678)

研究期間 (年度) 2019-04-01 – 2021-03-31
キーワード二次元ナノ材料科学 / 化学気相成長 / 遷移金属カルコゲナイド / 電界効果トランジスタ / 電子デバイス
研究実績の概要

Tunable Doping of Rhenium and Vanadium into Transition Metal Dichalcogenides for Two-Dimensional Electronics: Two-dimensional (2D) transition metal dichalcogenides (TMDCs) with unique electrical properties are fascinating materials used for future electronics. However, the strong Fermi level pinning effect at the interface of TMDCs and metal electrodes always leads to high contact resistance, which seriously hinders their application in 2D electronics. One effective way to overcome this is to use metallic TMDCs or transferred metal electrodes as van der Waals (vdW) contacts. Alternatively, using highly conductive doped TMDCs will have a profound impact on the contact engineering of 2D electronics. In this project, a novel chemical vapor deposition using mixed molten salts is established for vapor-liquid-solid growth of high-quality rhenium (Re, electron donor) and vanadium (V, electron acceptor)-doped TMDC monolayers with high controllability and reproducibility. A tunable semiconductor to metal transition is observed in the Re- and V-doped TMDCs. Electrical conductivity increases up to a factor of 108 in the degenerate V-doped WS2 and WSe2. Using V-doped WSe2 as vdW contact, the on-state current and on/off ratio of WSe2-based field effect transistors (FETs) have been substantially improved (from ~10e-8 to 10e-5 A; ~10e4 to 10e8), compared to metal contacts. Future studies on lateral contacts and interconnects using doped TMDCs will pave the way for 2D integrated circuits and flexible electronics. This achievement was published in Advanced Science, 2021, 8(12), 2004438.

  • 研究成果

    (15件)

すべて 2021 2020

すべて 雑誌論文 (13件) (うち国際共著 13件、 査読あり 13件、 オープンアクセス 7件) 学会発表 (2件) (うち国際学会 2件)

  • [雑誌論文] Tunable Doping of Rhenium and Vanadium into Transition Metal Dichalcogenides for Two‐Dimensional Electronics2021

    • 著者名/発表者名
      Li Shisheng、Hong Jinhua、Gao Bo、Lin Yung‐Chang、Lim Hong En、Lu Xueyi、Wu Jing、Liu Song、Tateyama Yoshitaka、Sakuma Yoshiki、Tsukagoshi Kazuhito、Suenaga Kazu、Taniguchi Takaaki
    • 雑誌名

      Advanced Science

      巻: 8 ページ: 2004438

    • DOI

      10.1002/advs.202004438

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Quantifying photoinduced carriers transport in exciton-polariton coupling of MoS2 monolayers2021

    • 著者名/発表者名
      Yu Min-Wen、Ishii Satoshi、Li Shisheng、Ku Ji-Ren、Yang Jhen-Hong、Su Kuan-Lin、Taniguchi Takaaki、Nagao Tadaaki、Chen Kuo-Ping
    • 雑誌名

      npj 2D Materials and Applications

      巻: 5 ページ: 47

    • DOI

      10.1038/s41699-021-00227-y

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Ultrafast transient sub-bandgap absorption of monolayer MoS22021

    • 著者名/発表者名
      Das Susobhan、Wang Yadong、Dai Yunyun、Li Shisheng、Sun Zhipei
    • 雑誌名

      Light: Science & Applications

      巻: 10 ページ: 27

    • DOI

      10.1038/s41377-021-00462-4

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Deterministic Modification of CVD Grown Monolayer MoS2 with Optical Pulses2021

    • 著者名/発表者名
      Turunen Mikko T.、Hulkko Eero、Mentel Kamila K.、Bai Xueyin、Akkanen Suvi‐Tuuli、Amini Mohammad、Li Shisheng、Lipsanen Harri、Pettersson Mika、Sun Zhipei
    • 雑誌名

      Advanced Materials Interfaces

      巻: 8 ページ: 2002119

    • DOI

      10.1002/admi.202002119

    • 査読あり / 国際共著
  • [雑誌論文] Single-step chemical vapour deposition of anti-pyramid MoS2/WS2 vertical heterostructures2021

    • 著者名/発表者名
      Bai Xueyin、Li Shisheng、Das Susobhan、Du Luojun、Dai Yunyun、Yao Lide、Raju Ramesh、Du Mingde、Lipsanen Harri、Sun Zhipei
    • 雑誌名

      Nanoscale

      巻: 13 ページ: 4537~4542

    • DOI

      10.1039/D0NR08281C

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Structure, Preparation, and Applications of 2D Material‐Based Metal?Semiconductor Heterostructures2020

    • 著者名/発表者名
      Tan Junyang、Li Shisheng、Liu Bilu、Cheng Hui-Ming
    • 雑誌名

      Small Structures

      巻: 2 ページ: 2000093~2000093

    • DOI

      10.1002/sstr.202000093

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Seamlessly Splicing Metallic SnxMo1-xS2 at MoS2 Edge for Enhanced Photoelectrocatalytic Performance in Microreactor2020

    • 著者名/発表者名
      Shao Gonglei、Lu Yizhen、Hong Jinhua、Xue Xiong‐Xiong、Huang Jinqiang、Xu Zheyuan、Lu Xiangchao、Jin Yuanyuan、Liu Xiao、Li Huimin、Hu Sheng、Suenaga Kazu、Han Zheng、Jiang Ying、Li Shisheng、Feng Yexin、Pan Anlian、Lin Yung‐Chang、Cao Yang、Liu Song
    • 雑誌名

      Advanced Science

      巻: 7 ページ: 2002172

    • DOI

      10.1002/advs.202002172

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Twist Angle-Dependent Optical Responses in Controllably Grown WS2 Vertical Homojunctions2020

    • 著者名/発表者名
      Shao Gonglei、Xue Xiong-Xiong、Liu Xiao、Zhang Danliang、Jin Yuanyuan、Wu Yangwu、You Bingying、Lin Yung-Chang、Li Shisheng、Suenaga Kazu、Wang Xiao、Pan Anlian、Li Huimin、Hong Jinhua、Feng Yexin、Liu Song
    • 雑誌名

      Chemistry of Materials

      巻: 32 ページ: 9721~9729

    • DOI

      10.1021/acs.chemmater.0c03413

    • 査読あり / 国際共著
  • [雑誌論文] Enhancing stability by tuning element ratio in 2D transition metal chalcogenides2020

    • 著者名/発表者名
      Zhou Zhenjia、Xu Tao、Zhang Chenxi、Li Shisheng、Xu Jie、Sun Litao、Gao Libo
    • 雑誌名

      Nano Research

      巻: 14 ページ: 1704~1710

    • DOI

      10.1007/s12274-020-3035-y

    • 査読あり / 国際共著
  • [雑誌論文] Na2SO4-Regulated High-Quality Growth of Transition Metal Dichalcogenides by Controlling Diffusion2020

    • 著者名/発表者名
      Jin Yuanyuan、Cheng Miao、Liu Hang、Ouzounian Miray、Hu Travis Shihao、You Bingying、Shao Gonglei、Liu Xiao、Liu Yeru、Li Huimin、Li Shisheng、Guan Jie、Liu Song
    • 雑誌名

      Chemistry of Materials

      巻: 32 ページ: 5616~5625

    • DOI

      10.1021/acs.chemmater.0c01089

    • 査読あり / 国際共著
  • [雑誌論文] On/Off Boundary of Photocatalytic Activity between Single- and Bilayer MoS22020

    • 著者名/発表者名
      Taniguchi Takaaki、Nurdiwijayanto Leanddas、Li Shisheng、Lim Hong En、Miyata Yasumitsu、Lu Xueyi、Ma Renzhi、Tang Dang-Ming、Ueda Shigenori、Tsukagoshi Kazuhito、Sasaki Takayoshi、Osada Minoru
    • 雑誌名

      ACS Nano

      巻: 14 ページ: 6663~6672

    • DOI

      10.1021/acsnano.9b09253

    • 査読あり / 国際共著
  • [雑誌論文] Growth of Large-Area Homogeneous Monolayer Transition-Metal Disulfides via a Molten Liquid Intermediate Process2020

    • 著者名/発表者名
      Liu Hang、Qi Guopeng、Tang Caisheng、Chen Maolin、Chen Yang、Shu Zhiwen、Xiang Haiyan、Jin Yuanyuan、Wang Shanshan、Li Huimin、Ouzounian Miray、Hu Travis Shihao、Duan Huigao、Li Shisheng、Han Zheng、Liu Song
    • 雑誌名

      ACS Applied Materials & Interfaces

      巻: 12 ページ: 13174~13181

    • DOI

      10.1021/acsami.9b22397

    • 査読あり / 国際共著
  • [雑誌論文] Difference frequency generation in monolayer MoS22020

    • 著者名/発表者名
      Wang Yadong、Ghotbi Masood、Das Susobhan、Dai Yunyun、Li Shisheng、Hu Xuerong、Gan Xuetao、Zhao Jianlin、Sun Zhipei
    • 雑誌名

      Nanoscale

      巻: 12 ページ: 19638~19643

    • DOI

      10.1039/D0NR01994A

    • 査読あり / オープンアクセス / 国際共著
  • [学会発表] Salt-Assisted Growth of 2D Transition Metal Dichalcogenides2021

    • 著者名/発表者名
      Li Shisheng
    • 学会等名
      2021 Virtual MRS Spring Meeting & Exhibit
    • 国際学会
  • [学会発表] Salt-Assisted Growth of 2D Transition Metal Dichalcogenides2021

    • 著者名/発表者名
      Li Shisheng
    • 学会等名
      MANA International Symposium 2021
    • 国際学会

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公開日: 2021-12-27  

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