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Study of van der Waals epitaxy using moire super lattice

Research Project

Project/Area Number 21K18913
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionRitsumeikan University

Principal Investigator

MOHRI SHINICHIRO  立命館大学, 理工学部, 准教授 (60516037)

Co-Investigator(Kenkyū-buntansha) 荒木 努  立命館大学, 理工学部, 教授 (20312126)
藤井 高志  立命館大学, 総合科学技術研究機構, 教授 (60571685)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsモアレ超格子 / ファンデルワールスエピタキシー / リモートエピタキシー / 窒化物半導体 / グラフェン / 酸化物半導体 / 原子層材料 / 結晶成長
Outline of Research at the Start

ダングリングボンドを持たないグラフェン上の結晶成長(ファンデルワールスエピタキシー)では、従来の半導体エピタキシャル成長と異なり、格子整合の制約を受けにくい特徴があるが、逆に、核生成の制御や面内方向の拡散を制御することが難しいという問題点がある。
本研究では、グラフェンを2枚重ねた際に生じる『モアレ超格子』と呼ばれる長周期のポテンシャル変調構造を駆動力とすることで上記困難を克服することを目指す。グラフェン同士や基板とグラフェンとの積層角度を変えることで、モアレ超格子の周期やポテンシャル高さを制御し、吸着(核生成)や原子マイグレーションなどの結晶成長因子にどう影響するかを明らかにする。

Outline of Final Research Achievements

In this study, we try to improve the crystal quality in van der Waals epitaxy by utilizing the long-period potential modulation structure called "moire superlattice." Through this research, it has been found that there are differences in nucleation density and the size of the grown crystals depending on the stacking angle when we grow nitride semiconductors on graphene moire super lattice. Additionally, experiments with metal deposition also show that there are differences in the changes in phonon properties after stacking depending on the stacking angle, suggesting that the deposition mechanism varies with the stacking angle. Furthermore, we have successfully synthesized peelable Ga2O3 and InGaN through remote heteroepitaxy using high-quality epitaxial graphene.

Academic Significance and Societal Importance of the Research Achievements

情報化社会のさらなる進展に伴い、半導体回路の立体周期が求められている。その中で、電力変換や高速データ処理に必要な化合物半導体を自在に剥離、転写する技術の確立は大きな意義を持つ。本研究で進めるグラフェンの上のファンデルワールスエピタキシーはその中核技術として期待されている。本研究で、積層角度の自由度が結晶成長に与える可能性を示すことができた点は、ファンデルワールスエピタキシーにおける困難である配向制御につながる点で大きな意味があると考える。また、リモートエピタキシーにより剥離できる酸化物半導体や窒化物半導体の合成に成功した点も、今後のデバイス応用の可能性を広げる成果である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (46 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results) Presentation (40 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results)

  • [Int'l Joint Research] Dhaka大学/Rajshahi大学/Sheikh Fojilatunnesa Mujib 科学技術大学(バングラデシュ)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Phonon thermal conductivity properties in moiré superlattice systems2024

    • Author(s)
      毛利真一郎、荒木努
    • Journal Title

      Oyo Buturi

      Volume: 93 Issue: 3 Pages: 174-177

    • DOI

      10.11470/oubutsu.93.3_174

    • ISSN
      0369-8009, 2188-2290
    • Year and Date
      2024-03-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Emerging II-VI wide bandgap semiconductor device technologies2024

    • Author(s)
      Abdul Kuddus, Shaikh Khaled Mostaque, Shinichiro Mouri and Jaker Hossain
    • Journal Title

      Physica Scripta

      Volume: 99 Issue: 2 Pages: 022001-022001

    • DOI

      10.1088/1402-4896/ad1858

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Frontiers of nitride semiconductor crystal growth using molecular beam epitaxy2023

    • Author(s)
      荒木 努, 出浦 桃子, 藤井 高志, 毛利 真一郎
    • Journal Title

      Oyo Buturi

      Volume: 92 Issue: 10 Pages: 622-626

    • DOI

      10.11470/oubutsu.92.10_622

    • ISSN
      0369-8009, 2188-2290
    • Year and Date
      2023-10-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Substrate Terrace Width Dependence of Direct Growth of GaN on ScAlMgO4 by Radio-Frequency Molecular Beam Epitaxy2023

    • Author(s)
      Yuichi Wada, Momoko Deura, Yuya Kuroda, Naoki Goto, Seiya Kayamoto, Takashi Fujii, Shinichiro Mouri, Tsutomu Araki
    • Journal Title

      Physica status solidi B

      Volume: 260 Issue: 7 Pages: 202300029-202300029

    • DOI

      10.1002/pssb.202300029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of Metal-Rich Growth for GaN/AlN Superlattice Fabrication on Face-to-Face-Annealed Sputter-Deposited AlN Templates2023

    • Author(s)
      Naoya Mokutani, Momoko Deura, Shinichiro Mouri, Kanako Shojiki, Shiyu Xiao, Hideto Miyake, Tsutomu Araki
    • Journal Title

      Physica status solidi B

      Volume: 260 Issue: 9 Pages: 2300061-2300061

    • DOI

      10.1002/pssb.202300061

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Van der Waals epitaxy of Transferable InGaN Thin Film by RF-MBE Method2024

    • Author(s)
      Riku Nambu, Shota Hattori, Tsutomu Araki, Shinichiro Mouri
    • Organizer
      第66回フラーレンナノチューブグラフェン学会総合シンポジウム(FNTG)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Impact of Twist Angle for Raman Shift of Suspended Twisted Bilayer Graphene by Metal Deposition2024

    • Author(s)
      Shinichiro Mouri, Yuta Kawase, Riku Nanbu, Kosei Beniya, Yusuke Kodama, Tsutomu Araki
    • Organizer
      第66回フラーレンナノチューブグラフェン学会総合シンポジウム(FNTG)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Growth of MoS2 on Al1-xTixOy by Chemical Vapor Deposition2024

    • Author(s)
      Koshiro Kawakami, Syunsuke Yamamura, Abdul Kuddus, Shinichiro Mouri
    • Organizer
      第66回フラーレンナノチューブグラフェン学会総合シンポジウム(FNTG)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Performance Analysis of MoS2/WSe2 Complementary Field-Effect Transistors2024

    • Author(s)
      Yeasin Arafat Pritom, Abdul A Kuddus, Jaker Hossain, Md Rasidul Islam, Shinichiro Mouri, Mainul Hossain
    • Organizer
      2024年春季第71回応用物理学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ミストCVD法によるα-Ga2O3のリモートヘテロエピタキシー2024

    • Author(s)
      神田 将熙、金子 健太郎、毛利 真一郎
    • Organizer
      2024年春季第71回応用物理学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Nanolaminated Mist CVD High-κ AlOx/TixAl1-xOy/TiO2 films on P+-Si for TMDCs-MOSFETs2024

    • Author(s)
      Abdul A Kuddus, Kojun Yokoyama, Mainul Hossain, Jaker Hossain, Rasidul Islam, keiji Ueno, Shinichiro Mouri, Hajime Shirai
    • Organizer
      2024年春季第71回応用物理学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] MBE法を用いたファンデルワールスエピタキシーによる転写可能なInGaN成長2024

    • Author(s)
      南部 利矩、服部 翔太、荒木 努、毛利 真一郎
    • Organizer
      2024年春季第71回応用物理学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Modulation of carrier density of 1L-MoS2 using periodically polarization-inversed structure2023

    • Author(s)
      Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Kazunari Matsuda, Shinichiro Mouri
    • Organizer
      The 23th International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials (NT23)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 二酸化炭素をエッチングガスとして用いた窒化ガリウム上へのグラフェンCVD成長2023

    • Author(s)
      植野 康大, 薮田 翔平, 荒木 努, 毛利 真一郎
    • Organizer
      第15回ナノ構造エピタキシャル成長講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] GaN上形成ピットを活用したMoS2のCVD成長2023

    • Author(s)
      流石 新生,河瀬 流星,荒木 努, 毛利 真一郎
    • Organizer
      第15回ナノ構造エピタキシャル成長講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Few-Layer MoS2 and WS0.3Se1.7 on AIN and AlTiO/P+-Si for Energy Device Applications2023

    • Author(s)
      A. Kuddus, K. Yokoyama, K. Ueno, H. Shirai, and S. Mouri
    • Organizer
      Graphene 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mist CVD Atomic Few-Layer 2D Transition Metal-Dichalcogenides: MoS2,WS2 and WS2Se2-x for Electronic and Photovoltaic Devices2023

    • Author(s)
      A. Kuddus, K. Yokoyama, K. Ueno, S. Mouri and H. Shirai
    • Organizer
      2D Transition metal dichalcogenides
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Few-Layer WS2Se2-x on High-κ AlxTi1-xOy Dielectric Using Consistent Mist CVD and Applied in MOSFETs Devices2023

    • Author(s)
      A. Kuddus, K. Yokoyama, K. Ueno, S. Mouri, and H. Shirai
    • Organizer
      第65回フラーレンナノチューブグラフェン学会総合シンポジウム(FNTG)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Remote charge density modulation of monolayer MoS2 using periodically polarization-inversed ferroelectric substrate2023

    • Author(s)
      Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Kazunari Matsuda, Shinichiro Mouri
    • Organizer
      第65回フラーレンナノチューブグラフェン学会総合シンポジウム(FNTG)
    • Related Report
      2023 Annual Research Report
  • [Presentation] CVD法による架橋2層h-BN上へのグラフェンナノ構造成長2023

    • Author(s)
      利根川 舜、河瀬 裕太、毛利 真一郎
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Remote charge modulation effect of monolayer MoS2 using periodically polarization-inverted structure and hBN spacer layer2023

    • Author(s)
      Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Kazunari Matsuda, Shinichiro Mouri
    • Organizer
      JSPA-OSA jyoint symposia 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Decomposition and Size Distribution Monitoring of AlTiO and MoS2 Precursor Mist Particles using a Fast-Scanning Mobility Particle Sizer2023

    • Author(s)
      A. Kuddus, K. Yokoyama, K. Ueno, S. Mouri, and H. Shirai,
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Thermal conductivity of graphene/h-BN moire superlattice2023

    • Author(s)
      Y. Kodama, J. Doi, and S. Mouri
    • Organizer
      The 42nd Electronic Materials Symposium
    • Related Report
      2023 Annual Research Report
  • [Presentation] Spatial and remote charge density modulation methodfor MoS2 using periodically polarization inversed MgO: LiNbO32023

    • Author(s)
      Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Kazunari Matsuda, Shinichiro Mouri
    • Organizer
      36th International Microprocesses and Nanotechnology Conference (MNC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct Synthesis of MoS2 and WS2Se2-x on High-κ AlxTi1-xOy Using Mist CVD Toward Transfer-free MOSFETs Devices2023

    • Author(s)
      Abdul Kuddus, Kojun Yokoyama, Keiji Ueno, Shinichiro Mouri, Hajime Shirai
    • Organizer
      36th International Microprocesses and Nanotechnology Conference (MNC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mist CVD Modulated High-κ a-Al1-xTixOy Films for p-WS0.3Se0.7-channel MOSFETs2023

    • Author(s)
      Abdul Kuddus, Kojun Yokoyama, Keiji Ueno, Shinichiro Mouri, Hajime Shirai
    • Organizer
      MRS Fall Meeting & Exhibit
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CVD成長による窒化物半導体上へのMoS2直接成長における基板アニーリング効果2023

    • Author(s)
      河瀬 流星, 流石 新生, Kuddus Abdul, 三宅 秀人, 荒木 努, 毛利 真一郎
    • Organizer
      第52回結晶成長国内会議
    • Related Report
      2023 Annual Research Report
  • [Presentation] Ar/O2キャリアガスを用いた窒化物半導体上へのMoS2のCVD成長2023

    • Author(s)
      河瀬 流星、流石 新生、Rong Kaipeng、Kuddus Abdul、三宅 秀人、荒木 努、毛利 真一郎
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Synthesis of Few-layer 2D Transition Metal-Dichalcogenides for Electronics and Optoelectronics: A2023

    • Author(s)
      Abdul A Kuddus、Kojun Yokoyama、Shinichiro Mouri、Hajime Shirai
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Growth of Nanographene on the Suspended Bilayer h-BN Membrane2023

    • Author(s)
      Shun TONEGAWA, Yuta KAWASE, Tomohiro ASADA, Shinichiro MOURI
    • Organizer
      The 64st Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2022 Research-status Report
  • [Presentation] Doping effect of MoS2 using periodically polarization-inversed structure2023

    • Author(s)
      Kaipeng Rong, Ryosuke Noro, Hayato Nishigaki, Mingda Ding, Yao Yao, Taiki Inoue, Ryuji Katayama, Yoshihiro Kobayashi, Shinichiro Mouri
    • Organizer
      The 64st Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2022 Research-status Report
  • [Presentation] CVD法によるGaN上への原子層半導体MoS2成長 における基板極性の影響2022

    • Author(s)
      河瀬 流星, 流石 新生, Rong Kaipeng, 荒木 努, 毛利 真一郎
    • Organizer
      第14回ナノ構造エピタキシャル成長講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Surface Potential Measurement of MoS2 on Ga-face and N-face GaN substrates by KFM2022

    • Author(s)
      K. Rong, T. Araki, and S. Mouri
    • Organizer
      41th Electronic Materials Symposium
    • Related Report
      2022 Research-status Report
  • [Presentation] 二酸化炭素を炭素源とする窒化ガリウム上へ のグラフェン成長へ向けた検討2022

    • Author(s)
      浅田 智浩、植野 康大、薮田 翔平、荒木 努、毛利 真一郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 金属ナノ粒子の蒸着による架橋2層グラフェンラマンスペクトルの変調2022

    • Author(s)
      河瀬 裕太、多田村 充、荒木 努、毛利 真一郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 自立GaN基板上にRF-MBE法で再成長したGaNの発光特性2022

    • Author(s)
      中山 大輝、今村 涼、荒木 努、毛利 真一郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] アルコールCVD法を用いたGaN上への酸化グラフェン成長2022

    • Author(s)
      薮田翔平, 河瀬流星, 荒木 努, 毛利 真一郎
    • Organizer
      2022年春季第69回応用物理学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] THz-TDSEを用いたr面サファイア基板上グラフェンの電気的特性評価2022

    • Author(s)
      鈴木 拓輝, 渡邉 迅登, 藤井 高志, 毛利 真一郎, 岩本 敏志, 福西 康寛, 成塚 重弥, 荒木 努
    • Organizer
      2022年春季第69回応用物理学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Metal Deposition on a Suspended Graphene Surface2021

    • Author(s)
      Y. Kawase, K. Matsushima, J. Doi, T. Araki, S. Mouri
    • Organizer
      The 61st Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2021 Research-status Report
  • [Presentation] THz-TDSエリプソメトリを用いたグラフェンの電気的特性評価2021

    • Author(s)
      鈴木 拓輝, 藤井 高志, 毛利 真一郎, 岩本 敏志, 上田 悠貴, 成塚 重弥, 中嶋 誠, 荒木 努
    • Organizer
      2021年秋季第82回応用物理学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] ラマン分光を用いた架橋ツイスト2層グラフェンの熱伝導測2021

    • Author(s)
      土井 惇太郎, 荒木 努, 毛利 真一郎
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 架橋グラフェン上における窒化インジウムのファンデルワールスエピタキシー2021

    • Author(s)
      河瀬裕太, 松島健太, 土井惇太郎, 荒木努, 毛利真一郎
    • Organizer
      2021年秋季第82回応用物理学会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Growth and Raman Characterization of Non-Bernal Stacking Few-Layer Graphene by Alcohol CVD Method2021

    • Author(s)
      T. Asada, S. Yabuta, T. Araki and S. Mouri
    • Organizer
      40th Electronic Materials Symposium
    • Related Report
      2021 Research-status Report
  • [Presentation] Surface Potential of MoS2 Depending on the Polarity of GaN Substrate Measured by Kelvin Probe Force Microscope2021

    • Author(s)
      R. Kaipeng, Y. Komichi, T. Araki and S. Mouri
    • Organizer
      The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference (RPGR 2021)
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] グラフェン上での InN MBE 成長における窒素プラズマ照射時間の検討2021

    • Author(s)
      松島健太、土井惇太郎、荒木努、毛利真一郎
    • Organizer
      第13回ナノ構造エピタキシャル成長講演会
    • Related Report
      2021 Research-status Report

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Published: 2021-07-13   Modified: 2025-01-30  

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