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Pioneering Cooperative Quantum Optical Phenomena in Moire Superlattices

Research Project

Project/Area Number 21H01012
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionKyoto University

Principal Investigator

Keisuke Shinokita  京都大学, エネルギー理工学研究所, 助教 (60806446)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords光物性 / 半導体物性 / ナノ材料
Outline of Research at the Start

わずか原子数層からなるグラフェン類縁物質である二次元物質やそのヘテロ構造は、従来の半導体ナノ構造とは質的に異なる特異な光学的性質を示すことから、新しい物質科学・物性物理学の研究対象として注目を集めている。本研究課題では、二次元物質を角度をつけて積層した人工ヘテロ構造において発現するモアレ超構造を利活用することで、これまでに実現されていない光配列・高密度な励起子集合体となる新たな量子システムを実現し、光子場を介して形成される励起子間相互作用による超蛍光現象や単一超蛍光現象をはじめとする協力的な新規量子光学現象の発現とその制御を目指す。

Outline of Final Research Achievements

This study investigated the fundamental optical properties of excitons in moire superlattices and explored novel optical phenomena utilizing inter-exciton interactions. We unveiled the basic optical characteristics of moire excitons Precise and flexible arrangement of moire excitons was achieved, leading to the enhancement of inter-exciton interactions and the observation of new quantum optical phenomena.
The findings have deepened the understanding of exciton physics in moire superlattices and contributed to the development of new optical science. The long coherence times of moire excitons and the quantum many-body phenomena arising from inter-exciton interactions show promise for applications in quantum information processing and novel optical devices.These achievements advance fundamental physics and have significant implications for the future development of quantum technologies and optoelectronics, paving the way for exploring new frontiers in optical science and technology.

Academic Significance and Societal Importance of the Research Achievements

本研究は、モアレ超構造における励起子物理の理解を大きく深化させ、二次元半導体における新たな光科学の開拓に貢献するものである。モアレ励起子の長いコヒーレンス時間や励起子間相互作用を利用した量子多体現象は、量子情報処理や新たな光デバイスへの応用が期待される。また、モアレ超構造における励起子の電荷制御は、高効率な光電変換デバイスの実現に繋がる可能性がある。本研究で得られた知見は、基礎物理の発展だけでなく、将来の量子技術や光エレクトロニクスの発展に大きく寄与すると期待される。

Report

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

    (45 results)

All 2024 2023 2022 2021 Other

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (33 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (4 results)

  • [Journal Article] Symmetry Engineering in Twisted Bilayer WTe22023

    • Author(s)
      Y. Zhang, K. Kamiya, T. Yamamoto, M. Sakano, X. Yang, S. Masubuchi, S. Okazaki, K. Shinokita, T. Chen, K. Aso, Y. Yamada-Takamura, Y. Oshima, K. Watanabe, T. Taniguchi, K. Matsuda, T. Sasagawa, K. Ishizaka, and T. Machida
    • Journal Title

      Nano Lett.

      Volume: 23 Issue: 20 Pages: 9280-9280

    • DOI

      10.1021/acs.nanolett.3c02327

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamics of Moire Exciton in a Twisted MoSe2/WSe2 Heterobilayer2023

    • Author(s)
      Kim Heejun、Aino Kumpei、Shinokita Keisuke、Zhang Wenjin、Watanabe Kenji、Taniguchi Takashi、Matsuda Kazunari
    • Journal Title

      Advanced Optical Materials

      Volume: 11 Issue: 14 Pages: 2300146-2300146

    • DOI

      10.1002/adom.202300146

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shift‐Current Photovoltaics Based on a Non‐Centrosymmetric Phase in In‐Plane Ferroelectric SnS2023

    • Author(s)
      Chang Yih‐Ren、Nanae Ryo、Kitamura Satsuki、Nishimura Tomonori、Wang Haonan、Xiang Yubei、Shinokita Keisuke、Matsuda Kazunari、Taniguchi Takashi、Watanabe Kenji、Nagashio Kosuke
    • Journal Title

      Advanced Materials

      Volume: 35 Issue: 29 Pages: 2301172-2301172

    • DOI

      10.1002/adma.202301172

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamics of Moire Trion and Its Valley Polarization in a Microfabricated WSe2/MoSe2 Heterobilayer2023

    • Author(s)
      Kim Heejun、Dong Duanfei、Okamura Yuki、Shinokita Keisuke、Watanabe Kenji、Taniguchi Takashi、Matsuda Kazunari
    • Journal Title

      ACS Nano

      Volume: 17 Issue: 14 Pages: 13715-13723

    • DOI

      10.1021/acsnano.3c02952

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valley Relaxation of the Moir? Excitons in a WSe2/MoSe2 Heterobilayer2022

    • Author(s)
      Shinokita Keisuke、Watanabe Kenji、Taniguchi Takashi、Matsuda Kazunari
    • Journal Title

      ACS Nano

      Volume: 16 Issue: 10 Pages: 16862-16868

    • DOI

      10.1021/acsnano.2c06813

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Continuous Color‐Tunable Light‐Emitting Devices Based on Compositionally Graded Monolayer Transition Metal Dichalcogenide Alloys2022

    • Author(s)
      Pu Jiang、Ou Hao、Yamada Tomoyuki、Wada Naoki、Naito Hibiki、Ogura Hiroto、Endo Takahiko、Liu Zheng、Irisawa Toshifumi、Yanagi Kazuhiro、Nakanishi Yusuke、Gao Yanlin、Maruyama Mina、Okada Susumu、Shinokita Keisuke、Matsuda Kazunari、Miyata Yasumitsu、Takenobu Taishi
    • Journal Title

      Advanced Materials

      Volume: 34 Issue: 44 Pages: 2203250-2203250

    • DOI

      10.1002/adma.202203250

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnon‐Coupled Intralayer Moire Trion in Monolayer Semiconductor-Antiferromagnet Heterostructures2022

    • Author(s)
      Zhang Yan、Kim Heejun、Zhang Wenjin、Watanabe Kenji、Taniguchi Takashi、Gao Yanlin、Maruyama Mina、Okada Susumu、Shinokita Keisuke、Matsuda Kazunari
    • Journal Title

      Advanced Materials

      Volume: - Issue: 18 Pages: 2200301-2200301

    • DOI

      10.1002/adma.202200301

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resonant Coupling of a Moire Exciton to a Phonon in a WSe2/MoSe2 Heterobilayer2021

    • Author(s)
      Shinokita Keisuke、Miyauchi Yuhei、Watanabe Kenji、Taniguchi Takashi、Matsuda Kazunari
    • Journal Title

      Nano Letters

      Volume: 21 Issue: 14 Pages: 5938-5944

    • DOI

      10.1021/acs.nanolett.1c00733

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Efficient robotic fabrication of large area monolayer semiconductors2024

    • Author(s)
      Wataru Idehara, Fan Yang, Keisuke Shinokita, Kazunari Matsuda
    • Organizer
      第66回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Strain-influenced optical properties of moire excitonic states in MoSe2/WSe2 van der Waals heterostructures2024

    • Author(s)
      Yanlin Wang, Keisuke Shinokita, Kazunari Matsuda
    • Organizer
      第66回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Dynamic of defect-localized excitons in monolayer WSe2 under in-plane magnetic field2024

    • Author(s)
      Yubei Xiang, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      第66回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mie 共鳴を示すシリコンナノ粒子と結合した単層 WSe2 の光学特性2024

    • Author(s)
      呉 柊斗, 篠北 啓介, 杉本 泰, 藤井 稔, 松田 一成
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] MoS2/CrPS4 人工ヘテロ構造デバイスにおける磁気光起電力特性2024

    • Author(s)
      朝田 秀一 , 篠北 啓介 , 松田 一成
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ロボット技術支援による高効率・大面積な単層半導体作製システムの構築2024

    • Author(s)
      出原 渉 , 篠北 啓介 , 松田 一成 , Yang Fan
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Valley polarized hybridized excitons in MoSe2/WS2 heterobilayers2023

    • Author(s)
      Sho Shomura, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      第65回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Dynamic of moire trion in mircrofabricated WSe2/MoSe2 heterobilayer2023

    • Author(s)
      Heejun Kim, Duanfei Dong, Yuki Okamura, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      第65回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Strain Modulation to Moire Superlattices in Two-Dimensional Material van der Waals Heterostructures2023

    • Author(s)
      Hao Ou, Koshi Oi, Rei Usami, Takahiko Endo, Keisuke Shinokita, Kazunari Matsuda, Yasumitsu Miyata, Jiang Pu, Taishi Takenobu
    • Organizer
      第65回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] エッチングフリー金剥離法による二次元半導体作製手法の確立2023

    • Author(s)
      村瀬 大騎、篠北 啓介、若藤 祐斉、小野寺 桃子、町田 友樹、谷口 尚、渡邊 賢司、松田 一成
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 面内分極を持つMoS2/SnSヘテロ界面による自発的光起電力2023

    • Author(s)
      平林 弘暉、篠北 啓介、渡邊 賢司、谷口 尚、松田 一成
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ツイストWSe2/WSe2ホモ二層における混成励起子の光学特性2023

    • Author(s)
      篠北啓介,渡邊賢司,谷口尚,松田一成
    • Organizer
      日本物理学会2023年秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ツイスト二次元ヘテロ構造におけるモアレ励起子の光科学2023

    • Author(s)
      篠北啓介
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Moire excitonic states in a twisted WSe2/MoSe2 heterobilayers2023

    • Author(s)
      篠北啓介
    • Organizer
      JSAP-OPTICA joint symposium
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Strain Modulation to Moire Superlattices in Transition Metal Dichalcogenide van der Waals Heterostructures2023

    • Author(s)
      Hao Ou, Koshi Oi, Rei Usami, Takahiko Endo, Keisuke Shinokita, Kazunari Matsuda, Yasumitsu Miyata, Jiang Pu, Taishi Takenobu
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Observation of quantum coherence of a single moire exciton in nano-fabricated twisted MoSe2/WSe2 heterobilayers2023

    • Author(s)
      Wang Haonan, Heejun Kim, Duanfei Dong, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fabrication of artificially designed two-dimensional material and van der Waals heterostructure by fully dry transfer method2023

    • Author(s)
      Daiki Murase, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Symmetry control of twisted bilayer WTe2 using van der Waals assembly2023

    • Author(s)
      Keisuke Kamiya, Yijin Zhang, Takato Yamamoto, Masato Sakano, Keisuke Shinokita, Shota Okazaki, Satoru Masubuchi, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, Takao Sasagawa, Kazunari Matsuda, Kyoko Ishizaka, Tomoki Machida
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Fabrication of highly strained monolayer light-emitting devices2023

    • Author(s)
      Koshi Oi, Jiang Pu, Hao Ou, Rei Usami, Takahiko Endo, Yasumitsu Miyata, Keisuke Shinokita, Kazunari Matsuda, Taishi Takenobu
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Continuous color-tunable light-emitting devices based on compositionally graded monolayer transition metal dichalcogenide alloys2023

    • Author(s)
      Jiang Pu, Hao Ou, Tomoyuki Yamada, Naoki Wada, Hibiki Naito, Hiroto Ogura, Takahiko Endo, Zheng Liu, Toshifumi Irisawa, Kazuhiro Yanagi, Yusuke Nakanishi, Yanlin Gao, Mina Maruyama, Susumu Okada, Keisuke Shinokita, Kazunari Matsuda, Yasumitsu Miyata, Taishi Takenobu
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Observation of a single moire exciton in nano-fabricated twisted MoSe2/WSe2 heterobilayers2023

    • Author(s)
      Haonan Wang, Heejun Kim, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Bayesian optimization for the mechanical exfoliation of monolayer WSe22023

    • Author(s)
      Kumpei Aino, Keisuke Shinokita, Kazunari Matsuda
    • Organizer
      64回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] WSe2/MoSe2ヘテロ二層におけるモアレ励起子の円偏光分解発光励起スペクトル2022

    • Author(s)
      篠北啓介,渡邊賢司,谷口尚,松田一成
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Negative circularly polarization of moire exciton luminescence in WSe2/MoSe2 heterobilayers2022

    • Author(s)
      Keisuke Shinokita, Kunpei Aino, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      62回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Electrically tunable moir3 trions in twisted WSe2/MoSe2 heterobilayers2022

    • Author(s)
      Duanfei Dong, Wenjin Zhang, Kenji Watanabe, Takashi Taniguchi, Keisuke Shinokita, Kazunari Matsuda
    • Organizer
      62回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Spontaneous photocurrent of WSe2/CrPS4 hetero-interface with in-plane polarization and highly air-stability.2022

    • Author(s)
      Shuichi Asada, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      62回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] A small number of moire exciton photoluminescence in nanofabricated MoSe2/WSe2 heterobilayers2022

    • Author(s)
      Yuki Okamura, Keisuke Shinokita, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      62回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] WSe2/MoSe2ヘテロ二層におけるモアレ励起子の円偏光発光分光2022

    • Author(s)
      篠北啓介,相野薫平,渡邊賢司,谷口尚,松田一成
    • Organizer
      62回 フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 微細加工した MoSe2/WSe2ヘテロ二層の少数モアレ励起子による光学特性2022

    • Author(s)
      岡村 勇輝、篠北 啓介、渡邊 賢司、谷口 尚、松田 一成
    • Organizer
      2022年第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] WSe2/MoSe2ヘテロ二層の発光スペクトルの強度依存性2021

    • Author(s)
      篠北啓介, 宮内雄平, 松田一成
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Moire exciton-phonon resonance in a WSe2/MoSe2 heterobilayer2021

    • Author(s)
      Keisuke Shinokita, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      第82回応用物理学会秋季学術講演会 JSAP-OSA Joint Symposia
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Novel excitonic features of moire exciton in twisted van der Waals heterostructures2021

    • Author(s)
      Keisuke Shinokita, Yuhei Miyauchi, Kenji Watanabe, Takashi Taniguchi, Kazunari Matsuda
    • Organizer
      第61回フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Dynamics of Moire Exciton in MoSe2-WSe2 Heterstrosucture2021

    • Author(s)
      Heejun Kim、Keisuke Shinokita、Wenjin Zhang、Kenji Watanabe、Takashi Taniguchi、Kazunari Matsuda
    • Organizer
      第82回応用物理学会秋季学術講演会 JSAP-OSA Joint Symposia
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 原子層強誘電材料のバルク光起電力発電を実証 ――ナノ発電実現へ新たな道を開拓――

    • URL

      https://www.iae.kyoto-u.ac.jp/new-iae/NewsRelease/JP/2023/06/07-140000.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 原子層強誘電材料のバルク光起電力発電を実証 ―ナノ発電実現へ新たな道を開拓―

    • URL

      https://www.t.u-tokyo.ac.jp/press/pr2023-06-07-001

    • Related Report
      2023 Annual Research Report
  • [Remarks] 微細加工WSe2/MoSe2ヘテロ構造におけるモアレトリオンのダイナミクスとバレースピン分極の解明

    • URL

      https://www.iae.kyoto-u.ac.jp/new-iae/NewsRelease/JP/2023/07/14-100000.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 原子層ヘテロ構造WSe2/MoSe2におけるモアレ励起子のバレー緩和の解明

    • URL

      http://www.iae.kyoto-u.ac.jp/new-iae/NewsRelease/JP/2022/09/28-150000.html

    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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