Mechanistic study of interface electronic states in 2D electron devices and improvement of the device performances

• Project/Area Number: 19H02590
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 29020:Thin film/surface and interfacial physical properties-related
• Research Institution: Tohoku University
• Principal Investigator: Fukidome Hirokazu 東北大学, 電気通信研究所, 准教授 (10342841)
• Co-Investigator(Kenkyū-buntansha): 保井 晃 公益財団法人高輝度光科学研究センター, 分光推進室, 主幹研究員 (40455291) ; 小嗣 真人 東京理科大学, 先進工学部マテリアル創成工学科, 教授 (60397990)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000); Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2019: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
• Keywords: 二次元電子 / トランジスタ / オペランド / X線分光 / 時空間 / 時空間X線分光 / デバイス / Society 5.0 / 顕微

Outline of Research at the Start

二次元電子系材料を用いた素子(2D-FET)の特性の実測値は、理論値を下回る。本研究では、、o-SXSに時間分解能を賦与した時空間オペランドX線分光(o-STXS)を開発し、2D-FETの電子状態の時空間変化を観測する。2D-FETのどの界面が、どの時間ドメインでキャリア輸送特性に影響するのかを解明し、2D-FETの素子特性を理論限界まで押し上げるための知見を得ることを目指す。

Outline of Final Research Achievements

We developed a spatiotemporal x-ray spectroscopy, and observed surface electronic states of FETs using 2D electrons as channels. We also started a study on InGaAs-HEMT, for instance, the effect of surface treatment high-frequency characteristics. We demonstrated that this spectromicroscopy is applicable to 2D-FET, the next-generation high-frequency devices, graphene transistors,

Academic Significance and Societal Importance of the Research Achievements

本研究において、従来の巨視的な電気計測法や分光法では得られない、「外場印加により誘起されるデバイス物性の時空間ダイナミクス」が時空間オペランドX線分光により得られた。このような成果は、Society 5.0の基盤インフラになるBeyond 5Gの中核を成すGaN高電子移動度トランジスタやグラフェン・トランジスタなどの超高周波デバイスの更なる性能向上に資するものとなる。よって、本研究の成果は、2030年代以降に到来するSociety 5.0の実現に貢献するものになると言える。

Research Products

• [Journal Article] Environmental effects on layer-dependent dynamics of Dirac fermions in quasicrystalline bilayer graphene (2022)
  • Author(s): Y. Zhao, T. Suzuki, T. Iimori, H.-W. Kim, J. R. Ahn, M. Horio, Y. Sato, Y. Fukaya, T. Kanai, K. Okazaki, S. Shin, S. Tanaka, F. Komori, H. Fukidome and I. Matsuda
  • Journal Title: Physical Review B Volume: 105 Issue: 11 Pages: 1-8
  • DOI: 10.1103/physrevb.105.115304
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Graphene-based plasmonic metamaterial for terahertz laser transistors (2022)
  • Author(s): T. Otsuji, S.A. Boubanga-Tombet, A. Satou, D. Yadav, H. Fukidome, T. Watanabe, T. Suemitsu, A.A. Dubinov, V.V. Popov, W. Knap, V. Kachorovskii, K. Narahara, M. Ryzhii, V. Mitin, M.S. Shur, and V. Ryzhii
  • Journal Title: Nanophoton. (invited, review) Volume: 11 Issue: 9 Pages: 1677-1696
  • DOI: 10.1515/nanoph-2021-0651
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] デバイス用基板上SiC単結晶薄膜を用いた超高品質グラフェンと高周波デバイスの廉価な製造法の創出 (2021)
  • Author(s): 吹留博一
  • Journal Title: 表面と真空 Volume: 64 Issue: 7 Pages: 318-323
  • DOI: 10.1380/vss.64.318
  • NAID: 130008064273
  • Peer Reviewed
• [Journal Article] Atomic arrangements of quasicrystal bilayer graphene: Interlayer distance expansion (2021)
  • Author(s): Yuki Fukaya, Yuhao Zhao, Hyun Woo Kim, Joung Real Ahn, Hirokazu Fukidome, Iwao Matsuda
  • Journal Title: Phys. Rev. B Volume: 104 Issue: 18
  • DOI: 10.1103/physrevb.104.l180202
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Electrical transport properties of gate tunable graphene lateral tunnel diodes (2020)
  • Author(s): Shiga Kanako、Komiyama Takahiro、Fuse Yoshiki、Fukidome Hirokazu、Sato Akira、Otsuji Taiichi、Uchino Takashi
  • Journal Title: Japanese Journal of Applied Physics Volume: 59 Issue: SI Pages: SIID03-SIID03
  • DOI: 10.35848/1347-4065/ab83de
  • Peer Reviewed
• [Journal Article] A graphene-based magnetoplasmonic metasurface for actively tunable transmission and polarization rotation at terahertz frequencies (2020)
  • Author(s): Padmanabhan Prashant、Boubanga-Tombet Stephane、Fukidome Hirokazu、Otsuji Taiichi、Prasankumar Rohit P.
  • Journal Title: Applied Physics Letters Volume: 116 Issue: 22 Pages: 221107-221107
  • DOI: 10.1063/5.0006448
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dynamics of surface electron trapping of a GaN-based transistors revealed by spatiotemporally resolved x-ray spectroscopy (2020)
  • Author(s): Omika Keiichi、Takahashi Kensuke、Yasui Akira、Ohkochi Takuo、Osawa Hitoshi、Kouchi Tsuyoshi、Tateno Yasunori、Suemitsu Maki、Fukidome Hirokazu
  • Journal Title: Applied Physics Letters Volume: 117 Issue: 17 Pages: 171605-171605
  • DOI: 10.1063/5.0020500
  • Peer Reviewed
• [Journal Article] Direct Formation of Solution-based Al2O3 on Epitaxial Graphene Surface for Sensor Applications (2019)
  • Author(s): K.S. Kim, H. Fukidome, and M. Suemitsu
  • Journal Title: Sensors and Materials Volume: 31 Issue: 7 Pages: 2291
  • DOI: 10.18494/SAM.2019.2317
  • ISSN: 0914-4935, 2435-0869
  • Year and Date: 2019-07-19
  • Peer Reviewed / Open Access
• [Journal Article] Modulation of Electronic States near Electrodes in Graphene Transistors Observed by Operando Photoelectron Nanospectroscopy (2019)
  • Author(s): H. Fukidome, K. Funakubo, N. Nagamura, K. Horiba, Y. Tateno, M. Oshima, and M. Suemitsu
  • Journal Title: Sensors and Materials Volume: 31 Issue: 7 Pages: 2303
  • DOI: 10.18494/SAM.2019.2327
  • ISSN: 0914-4935, 2435-0869
  • Year and Date: 2019-07-19
  • Peer Reviewed / Open Access
• [Journal Article] Influence of interface dipole layers on the performance of graphene field effect transistors (2019)
  • Author(s): Nagamura Naoka、Fukidome Hirokazu、Nagashio Kosuke、Horiba Koji、Ide Takayuki、Funakubo Kazutoshi、Tashima Keiichiro、Toriumi Akira、Suemitsu Maki、Horn Karsten、Oshima Masaharu
  • Journal Title: Carbon Volume: 152 Pages: 680-687
  • DOI: 10.1016/j.carbon.2019.06.038
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ultrafast Unbalanced Electron Distributions in Quasicrystalline 30° Twisted Bilayer Graphene (2019)
  • Author(s): Takeshi Suzuki*, Takushi Iimori, Sung Joon Ahn, Yuhao Zhao, Mari Watanabe, Jiadi Xu, Masami Fujisawa, Teruto Kanai, Nobuhisa Ishii, Jiro Itatani, Kento Suwa, Hirokazu Fukidome, Satoru Tanaka, Joung Real Ahn, Kozo Okazaki, Shik Shin, Fumio Komori*, Iwao Matsuda*
  • Journal Title: ACS Nano Volume: 13 Issue: 10 Pages: 11981-11987
  • DOI: 10.1021/acsnano.9b06091
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] SiCをプラットフォームとしたBeyond 5Gデバイスの創出とデバイス物理の探求 (2022)
  • Author(s): 吹留博一
  • Organizer: 第27回電子デバイス研究会（EDIT 27）
  • Invited
• [Presentation] 二次元材料成膜・形成および機能発現評価の課題 (2022)
  • Author(s): 吹留博一
  • Organizer: 2022年第69回応用物理学会春季学術講演会シンポジウム「二次元材料を集積回路に」
  • Invited
• [Presentation] Fast terahertz detection in an asymmetric dual-grating-gate epitaxial graphene-channel FET (2021)
  • Author(s): D. Ogiura, A. Satou, H. Fukidome, and T. Otsuji
  • Organizer: RPGR2021
  • Int'l Joint Research
• [Presentation] High Speed Terahertz Detection by an Asymmetric Dual-Grating-Gate Graphene FET (2021)
  • Author(s): K. Tamura, D. Ogiura, K. Suwa, H. Fukidome, A. Satou, Y. Takida, H. Minamide, and T. Otsuji
  • Organizer: RJUSE-TeraTech2021: 9th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies
  • Int'l Joint Research
• [Presentation] Controlling the parity and time-reversal symmetry of non-Hermitian graphene Dirac plasmons and its application to terahertz lasers (2021)
  • Author(s): T. Otsuji, A. Satou, H. Fukidome, M. Ryzhii, V. Ryzhii, and K. Narahara
  • Organizer: WINDS: the Workshop on Innovative Nanoscale Devices and Systems
  • Int'l Joint Research / Invited
• [Presentation] Process development and crystal quality evaluation of van der Waals nanocapacitors using graphene/h-BN heterostructures stacked by a transfer/stacking method (2020)
  • Author(s): H. Sugawara, K. Suwa, H. Fukidome, J. A. Delgado-Notario, A. Satou, and T. Otsuji
  • Organizer: 6th A3 Foresight International Workshop on 2D Materials
• [Presentation] Improved sensitivity of surface-enhanced Raman spectroscopy (SERS) substrates using monolayer graphene (2020)
  • Author(s): T. Uchino, K. Shiga, K. Imai, M. Kusano, H. Fukidome, A. Satou, and T. Otsuji
  • Organizer: MNC2020: 33rd Int. Microprocesses and Nanotechnology Conference
• [Presentation] 96.Terahertz photoluminescence from narrow gap HgTe/CdHgTe heterostructures and multilayer graphene (2019)
  • Author(s): V.V. Utochkin, S.V. Morozov, M.A. Fadeev, V.V. Rumyantsev, N.N. Mikhailov, S.A. Dvoretsky, T. Komiyama, T. Watanabe, H. Fukidome, A. Satou, T. Otsuji
  • Organizer: RJUSE2019: 8th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, & GDR-I FIR-LAB Workshop,
  • Int'l Joint Research
• [Presentation] Realization of the high-performance graphene transistor by controlling the interface between graphene and gate dielectric (2019)
  • Author(s): T. Komiyama, T. Watanabe, S. Morozov, M. Fadeev, V. Utochkin, H. Fukidome, A. Satou, andT. Otsuji
  • Organizer: RPGR2019: Recent Progress on Graphene and 2D Materials, Matsue, Shimane, Japan, 2019.10.7-9.
  • Int'l Joint Research
• [Remarks] 吹留研究室 研究紹介
  • URL: http://www.fukidome.riec.tohoku.ac.jp/%e7%a0%94%e7%a9%b6%e7%b4%b9%e4%bb%8b/
• [Patent(Industrial Property Rights)] アンテナモジュールおよびその製造方法 (2021)
  • Inventor(s): 吹留博一、末光哲也、渡邊一世、川原実、秋山昌次他
  • Industrial Property Rights Holder: 吹留博一、末光哲也、渡邊一世、川原実、秋山昌次他
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2021-207486
  • Filing Date: 2021