Ryota Ishii 石井良太

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Ishii Ryota 石井良太

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Researcher Number	60737047
Other IDs
Affiliation (Current)	2025: 京都大学, 工学研究科, 助教
Affiliation (based on the past Project Information) *help	2015 – 2024: 京都大学, 工学研究科, 助教 2014 – 2015: 京都大学, 工学(系)研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Crystal engineering / Basic Section 30010:Crystal engineering-related Except Principal Investigator Medium-sized Section 30:Applied physics and engineering and related fields / Crystal engineering / Science and Engineering / Science and Engineering / Applied materials
Keywords	Principal Investigator 励起子 / 窒化物半導体 / 超ワイドギャップ半導体 / フォトルミネッセンス / 深紫外分光 / ダイヤモンド / 時間分解分光 / 近接場分光 / 摂動下分光法 / 光物性 … More / ワイドギャップ半導体 / 磁場下分光 / 両極性電気伝導 / 深紫外発光ダイオード / 窒化アルミニウムガリウム / 窒化アルミニウム / 顕微分光 / 極限環境 / 量子井戸 / AlGaN / 束縛励起子 / 極限環境下分光 / エレクトロルミネッセンス / 時空間分解分光 / フォノン / 同位体効果 / 一軸性応力 / レーザダイオード / 発光ダイオード / 緩和過程 / 再結合過程 / 結晶工学 … More Except Principal Investigator 高効率化 / InリッチInGaN / 深紫外フォトニクス / 近接場分光 / 窒化物半導体 / 半導体3次元構造 / 深紫外分光 / 可視長波長LED / ScAlMgO4 / 結晶成長 / 発光ダイオード / ScAlMgO4基板 / 発光高効率化 / 光空間無線通信 / 次世代照明 / 発光シンセサイザー / 多波長発光素子 / 光物性評価 / 窒化物特異構造 / 発光制御 / 発光機構解明 / 特異構造 / 顕微分光 / 近接場光学顕微鏡 / 光物性 / 半導体物性 / 電子・電気材料 / ダイヤモンド / 電気・電子 / 軽元素 / 同位体 / ナノ局在物性 / 多波長発光制御 / テーラーメイド光源 / 多波長発光 / ナノ局在 / 3次元構造 / プラズモニクス / 多波長発光光源 / 局在光物性 / 新機能発光デバイス / 超ワイドギャップ半導体 / 近接場光学 Less

超ワイドギャップ半導体の両極性電気伝導発現に向けた物性の解明と制御Principal Investigator
- Principal Investigator
  
  石井良太
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 30010:Crystal engineering-related
- Research Institution
  Kyoto University
Visible, long wavelength LEDs based on In-rich InGaN on ScAlMgO4 substrates
- Principal Investigator
  
  船戸充
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 30:Applied physics and engineering and related fields
- Research Institution
  Kyoto University
Light emitting synthesizer : aiming to create the ultimate lighting devices
- Principal Investigator
  
  川上養一
- Project Period (FY)
  2020 – 2024
- Research Category
  
  Grant-in-Aid for Specially Promoted Research
- Review Section
  
  Science and Engineering
- Research Institution
  Kyoto University
ScAlMgO4基板上へのInリッチInGaN系LEDの実現
- Principal Investigator
  
  川上養一
- Project Period (FY)
  2020
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 30:Applied physics and engineering and related fields
- Research Institution
  Kyoto University
Creation of ultrawide-bandgap-semiconductor exciton-engineering using deep-ultraviolet time and spatially resolved spectroscopies under extreme environmentsPrincipal Investigator
- Principal Investigator
  
  Ishii Ryota
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 30010:Crystal engineering-related
- Research Institution
  Kyoto University
Optical properties of super-widegap semiconductors studied by time and spatially resolved deep-ultraviolet spectroscopyPrincipal Investigator
- Principal Investigator
  
  Ishii Ryota
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Young Scientists (A)
- Research Field
  
  Crystal engineering
- Research Institution
  Kyoto University
Physical properties of isotope diamond looking for further light element materials
- Principal Investigator
  
  Shikata Shinichi
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Crystal engineering
- Research Institution
  Kwansei Gakuin University
近接場分光（SNOM）による特異構造の発光機構解明と制御
- Principal Investigator
  
  川上養一
- Project Period (FY)
  2016 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Kyoto University
Optical properties of (Al,In,Ga)N-based semiconductors studied by spectroscopy under various perturbation fieldsPrincipal Investigator
- Principal Investigator
  
  Ishii Ryota
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Crystal engineering
- Research Institution
  Kyoto University
深紫外近接場分光による超ワイドギャップ半導体の物性解明
- Principal Investigator
  
  Kawakami Yoichi
- Project Period (FY)
  2015
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Applied materials
- Research Institution
  Kyoto University
Achievement of Tailor-made Lighting Sources by the Control of Nanoscopic Carrier Localization in Nitride Semiconductors
- Principal Investigator
  
  Kawakami Yoichi
- Project Period (FY)
  2015 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Crystal engineering
- Research Institution
  Kyoto University
磁場下偏光反射・偏光フォトルミネッセンス測定によるAlNの励起子状態の解明Principal Investigator
- Principal Investigator
  
  石井良太
- Project Period (FY)
  2014
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Crystal engineering
- Research Institution
  Kyoto University

All 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 Other

All Journal Article Presentation Patent

[Journal Article] Radiative and nonradiative recombination processes in AlGaN quantum wells on epitaxially laterally overgrown AlN/sapphire from 10 to 500 K2024
- Author(s)
  R. Ishii, S. Tanaka, N. Susilo, T. Wernicke, M. Kneissl, M. Funato, and Y. Kawakami
- Journal Title
  
  Physica Status Solidi (b)
  
  Volume: - Issue: 11 Pages: 24000181-9
- DOI
  10.1002/pssb.202400018
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-23K26560
[Journal Article] Deep-ultraviolet luminescence properties of AlN2024
- Author(s)
  R. Ishii, A. Yoshikawa, M. Funato, and Y. Kawakami
- Journal Title
  
  Physica Status Solidi, RRL
  
  Volume: - Issue: 11 Pages: 24000171-10
- DOI
  10.1002/pssr.202400017
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-23K26560
[Journal Article] Revisiting the substitutional Mg acceptor binding energy of AlN2023
- Author(s)
  R. Ishii, A. Yoshikawa, M. Funato, and Y. Kawakami
- Journal Title
  
  Phys. Rev. B
  
  Volume: 108 Issue: 3 Pages: 0352051-10
- DOI
  10.1103/physrevb.108.035205
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-23K26560
[Journal Article] Stimulated emission mechanism of aluminum nitride2022
- Author(s)
  R. Ishii, T. Nagashima, R. Yamamoto, T. Hitomi, M. Funato, and Y. Kawakami
- Journal Title
  
  Phys. Rev. B
  
  Volume: 105 Issue: 20 Pages: 1-9
- DOI
  10.1103/physrevb.105.205206
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-19H02615
[Journal Article] DUV coherent light emission from ultracompact microcavity wavelength conversion device2022
- Author(s)
  T. Nambu, T. Yano, S. Umeda, N. Yokoyama, H. Honda, Y. Tanaka, Y. Maegaki, Y. Mori, M. Yoshimura, S. Kobayashi, S. Ichikawa, Y. Fujiwara, R. Ishii, Y. Kawakami, M. Uemukai, T. Tanikawa, and R. Katayama
- Journal Title
  
  Optics Express
  
  Volume: 30 Issue: 11 Pages: 18628-18637
- DOI
  10.1364/oe.457538
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-22KJ2129
[Journal Article] Picosecond-laser-excited photoluminescence study of AlGaN quantum wells on epitaxially laterally overgrown AlN/sapphire under selective and non-selective excitation conditions2022
- Author(s)
  S. Tanaka, R. Ishii, N. Susilo, T. Wernicke, M, Kneissl, M. Funato, and Y. Kawakami
- Journal Title
  
  Jpn. J. Appl. Phys.
  
  Volume: 61 Issue: 11 Pages: 112002-112002
- DOI
  10.35848/1347-4065/ac94fd
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Journal Article] Bias-dependent time-resolved photoluminescence spectroscopy on 265-nm AlGaN-based LEDs on AlN substrates2021
- Author(s)
  R. Ishii, A. Yoshikawa, K. Nagase, M. Funato, and Y. Kawakami
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 60 Issue: 2 Pages: 020903-020903
- DOI
  10.35848/1347-4065/abd91d
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-19H02615
[Journal Article] Impact of the positive electron-hole exchange interaction constant on the binding energy of neutral donor bound excitons in AlN2021
- Author(s)
  R. Ishii, A. Yoshikawa, H. Kobayashi, M. Funato, and Y. Kawakami
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 60 Issue: 8 Pages: 080901-080901
- DOI
  10.35848/1347-4065/ac15ae
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-19H02615
[Journal Article] Structural and emission improvement of cyan-emitting InGaN quantum wells by introducing a large substrate misorientation angle2021
- Author(s)
  A. Kafar,A. Sakaki,R. Ishii,K. Shojiki,S. Stanczyk,K. Gibasiewicz,G. Staszczak,L. Marona,D. Schiavon,S. Grzanka,S. Krukowski,T. Suski,P. Perlin,M. Funato,Y. Kawakami
- Journal Title
  
  Optical Materials Express
  
  Volume: 12 Issue: 1 Pages: 119-135
- DOI
  10.1364/ome.445043
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K15025, KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-21H04661, KAKENHI-PROJECT-19H02615
[Journal Article] Microscopic origin of thermal droop in blue-emitting InGaN/GaN quantum wells studied by temperature-dependent microphotoluminescence spectroscopy2021
- Author(s)
  R. Ishii, Y. Koyama, M. Funato, and Y. Kawakami
- Journal Title
  
  Optics Express
  
  Volume: 29 Issue: 15 Pages: 22847-22854
- DOI
  10.1364/oe.428421
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-19H02615
[Journal Article] Influence of substrate misorientation on the emission and waveguiding properties of a blue (In,Al,Ga)N laser-like structure studied by synchrotron radiation microbeam X-ray diffraction2021
- Author(s)
  A. Kafar, A. Sakaki, R. Ishii, S. Stanczyk, K. Gibasiewicz, Y. Matsuda, D. Schiavon, S. Grzanka, T. Suski, P. Perlin, M. Funato, and Y. Kawakami
- Journal Title
  
  Photonics Research
  
  Volume: 9 Issue: 3 Pages: 299-307
- DOI
  10.1364/prj.411701
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-16H02332, KAKENHI-PROJECT-19H02615
[Journal Article] Radiative recombination efficiency of AlGaN quantum wells: do we estimate it accurately in a proper way?2020
- Author(s)
  Y. Kawakami, M. Funato, and R. Ishii
- Journal Title
  
  J. Phys. D: Appl. Phys.
  
  Volume: 53 Issue: 50 Pages: 503001-503001
- DOI
  10.1088/1361-6463/aba64c
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-16H02332, KAKENHI-PROJECT-19H02615
[Journal Article] Direct detection of rare earth ion distributions in gallium nitride and its influence on growth morphology2020
- Author(s)
  B. Mitchell, D. Timmerman, W. Zhu, J. Y. Lin, H. X. Jiang, J. Poplawsky, R. Ishii, Y. Kawakami, V. Dierolf, J. Tatebayashi, S. Ichikawa, and Y. Fujiwara
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 127 Issue: 1 Pages: 013102-013102
- DOI
  10.1063/1.5134050
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-15H05732, KAKENHI-PROJECT-19H02615, KAKENHI-PROJECT-18H05212
[Journal Article] Long-range electron-hole exchange interaction in aluminum nitride2020
- Author(s)
  R. Ishii, M. Funato, and Y. Kawakami
- Journal Title
  
  Physical Review B
  
  Volume: 102 Issue: 15 Pages: 1-5
- DOI
  10.1103/physrevb.102.155202
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-19H02615
[Journal Article] エレクトロルミネッセンス・フォトルミネッセンス法によるAlN基板上265nm帯AlGaN LEDの評価2020
- Author(s)
  石井良太・吉川　陽・永瀬和宏・船戸　充・川上養一
- Journal Title
  
  信学技報
  
  Volume: 120 Pages: 21-24
- Data Source
  KAKENHI-PROJECT-19H02615
[Journal Article] Achromatic Deep Ultraviolet Lens Using Novel Optical Materials2020
- Author(s)
  Y. Minami, M. Cadatal-Raduban, K. Kuroda, K. Shinohara, Y. Lai, K. Yamanoi, N. Sarukura, T. Shimizu, R. Ishii, Y. Kawakami, N. Kabasawa, T. Amano, K. Kiyohara, and M. Kiyohara
- Journal Title
  
  physica status solidi (b)
  
  Volume: in press Issue: 8 Pages: 1900480-1900480
- DOI
  10.1002/pssb.201900480
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-15H05732, KAKENHI-PROJECT-19H02615, KAKENHI-PROJECT-18K04975
[Journal Article] 265 nm AlGaN-based deep-ultraviolet light-emitting diodes grown on AlN substrates studied by photoluminescence spectroscopy under ideal pulsed selective and non-selective excitation conditions2020
- Author(s)
  R. Ishii, A. Yoshikawa, K. Nagase, M. Funato, and Y. Kawakami
- Journal Title
  
  Applied Physics Express
  
  Volume: 13 Issue: 10 Pages: 102005-102005
- DOI
  10.35848/1882-0786/abb86f
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-19H02615
[Journal Article] Temperature-dependent electroluminescence study on 265-nm AlGaN-based deep-ultraviolet light-emitting diodes grown on AlN substrates2020
- Author(s)
  R. Ishii, A. Yoshikawa, K. Nagase, M. Funato, and Y. Kawakami
- Journal Title
  
  AIP Advances
  
  Volume: 10 Issue: 12 Pages: 125014-125014
- DOI
  10.1063/5.0024179
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PROJECT-19H02615
[Journal Article] Above 25 nm emission wavelength shift in blue-violet InGaN quantum wells induced by GaN substrate misorientation profiling: towards broad-band superluminescent diodes2020
- Author(s)
  A. Kafar, R. Ishii, K. Gibasiewicz, Y. Matsuda, S. Stanczyk, D. Schiavon, S. Grzanka, M. Tano, A. Sakaki, T. Suski, P. Perlin, M. Funato, and Y. Kawakami
- Journal Title
  
  Optics Express
  
  Volume: 28 Issue: 15 Pages: 22524-22539
- DOI
  10.1364/oe.394580
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622, KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-16H02332, KAKENHI-PROJECT-20H00351, KAKENHI-PROJECT-19H02615
[Journal Article] Impact of face-to-face annealed sputtered AlN on the optical properties of AlGaN multiple quantum wells2019
- Author(s)
  K. Shojiki, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami, H. Miyake
- Journal Title
  
  AIP Advances
  
  Volume: 9 Issue: 12 Pages: 125342-125342
- DOI
  10.1063/1.5125799
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-16H06415, KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-15H05732, KAKENHI-PROJECT-19H02615
[Journal Article] Intrinsic exciton transitions of isotopically purified 13C studied by photoluminescence and transmission spectroscopy2019
- Author(s)
  Ishii Ryota、Shikata Shinichi、Teraji Tokuyuki、Kanda Hisao、Watanabe Hideyuki、Funato Mitsuru、Kawakami Yoichi
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 59 Issue: 1 Pages: 010903-010903
- DOI
  10.7567/1347-4065/ab5b77
- NAID
  210000157647
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19H02615, KAKENHI-PROJECT-16H06326
[Journal Article] Pushing the limits of deep-ultraviolet scanning near-field optical microscopy2019
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Journal Title
  
  APL Photonics
  
  Volume: 4 Issue: 7 Pages: 070801-070801
- DOI
  10.1063/1.5097865
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-15H05732, KAKENHI-PROJECT-19H02615
[Journal Article] Isotopic effects on phonons and excitons in diamond studied by deep-ultraviolet continuous-wave photoluminescence spectroscopy2019
- Author(s)
  R. Ishii, S. Shikata, T. Teraji, H. Kanda, H. Watanabe, M. Funato, and Y. Kawakami
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 58 Issue: 1 Pages: 010904-010904
- DOI
  10.7567/1347-4065/aaef3e
- NAID
  210000135251
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-16H06426, KAKENHI-PROJECT-15H05732, KAKENHI-PROJECT-26220903, KAKENHI-PROJECT-16H03861, KAKENHI-PROJECT-17H04810, KAKENHI-PROJECT-16H06326
[Journal Article] Synthesis of nano-polycrystalline diamond from glassy carbon at pressures up to 25 GPa2019
- Author(s)
  Irifune, T., Ueda, C., Ohshita, S., Ohfuji, H., Kunimoto, T. and Shinmei, T.
- Journal Title
  
  High Pressure Research
  
  Volume: 40 Issue: 1 Pages: 96-106
- DOI
  10.1080/08957959.2019.1702658
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K21901, KAKENHI-INTERNATIONAL-15K21712, KAKENHI-PLANNED-15H05829, KAKENHI-PROJECT-19H02615, KAKENHI-PROJECT-17K18883
[Journal Article] 多波長励起発光分離法を用いたInGaN薄膜のラマン産卵分光2015
- Author(s)
  石戸亮祐，石井良太，船戸充，川上養一
- Journal Title
  
  信学技報
  
  Volume: 115 Pages: 59-62
- Data Source
  KAKENHI-PROJECT-15K17460
[Journal Article] Effects of strong electron-hole exchange and exciton-phonon interactions on the exciton binding energy of aluminum nitride2014
- Author(s)
  R. Ishii, M. Funato, and Y. Kawakami
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 53 Issue: 9 Pages: 091001-091001
- DOI
  10.7567/jjap.53.091001
- NAID
  210000144422
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26886007
[Journal Article] (Al,Ga)N系半導体の物性予測に向けたGaNとAlNの物性定数の同定2014
- Author(s)
  石井良太，船戸充，川上養一
- Journal Title
  
  日本結晶成長学会誌
  
  Volume: 41 Pages: 138-145
- Open Access
- Data Source
  KAKENHI-PROJECT-26886007
[Patent] 発振器、増幅器2022
- Inventor(s)
  石井良太, 外5名
- Industrial Property Rights Holder
  国立大学法人京都大学、株式会社トクヤマ
- Industrial Property Rights Type
  特許
- Industrial Property Number
  2022-065458
- Filing Date
  2022
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Atomic force microscopy and scanning near-field optical microscopy on single quantum-well InGaN blue LEDs2024
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, Y. Kawakami
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] 超ワイドギャップ半導体光物性評価のための深紫外分光技術の現状と展望2024
- Author(s)
  石井良太, 船戸充, 川上養一
- Organizer
  ワイドギャップ半導体学会第15回研究会
- Invited
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] 超ワイドギャップ半導体光物性評価のための深紫外分光技術の現状と展望2024
- Author(s)
  石井良太, 船戸充, 川上養一
- Organizer
  ワイドギャップ半導体学会
- Invited
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] Atomic force microscopy and scanning near-field optical microscopy on single quantum-well InGaN blue LEDs2024
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, Y. Kawakami
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] AlNのMgアクセプタ束縛エネルギーについて：実験2023
- Author(s)
  石井良太, 吉川陽, 船戸充, 川上養一
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] AlNのMgアクセプタ束縛エネルギーについて：理論2023
- Author(s)
  石井良太, 吉川陽, 船戸充, 川上養一
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] Spatial- and time-resolved photoluminescence at high temperatures on green-emitting InGaN/GaN single quantum well grown on epitaxially laterally overgrown GaN2023
- Author(s)
  Z. Zhang, R. Ishii, M. Funato, and Y. Kawakami
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] GaN/AlN quantum wells on step edge density controlled AlN surface2023
- Author(s)
  K. Shojiki, Y. Yamanaka, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami, and H. Miyake
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] 窒化物半導体を用いた発光シンセサイザー開発の現状と展望2023
- Author(s)
  Y. Kawakami, Y. Matsuda, R. Ishii, and M. Funato
- Organizer
  日本表面真空学会関西支部特別講演会
- Invited
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] AlNのMgアクセプタ束縛エネルギーについて：実験2023
- Author(s)
  石井良太, 吉川陽, 船戸充, 川上養一
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] Fundamental optical properties of AlN revealed by deep ultraviolet spectroscopy2023
- Author(s)
  R. Ishii, A. Yoshikawa, M. Funato, and Y. Kawakami
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] GaN/AlN quantum wells on step edge density controlled AlN surface2023
- Author(s)
  K. Shojiki, Y. Yamanaka, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami, and H. Miyake
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Hybrid quantum-well InGaN red LEDs studied by correlative micro-photoluminescence spectroscopy2023
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, Y. Kawakami
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Correlative microphotoluminescence spectroscopy on hybrid quantum well InGaN red LEDs2023
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, and Y. Kawakami
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] AlNのMgアクセプタ束縛エネルギーについて：理論2023
- Author(s)
  石井良太, 吉川陽, 船戸充, 川上養一
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Hybrid quantum-well InGaN red LEDs studied by correlative micro-photoluminescence spectroscopy2023
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, Y. Kawakami
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K26560
[Presentation] 265 nm発光バルクAlN基板上AlGaN量子井戸の内部量子効率と発光寿命の温度依存性(10--500 K)2023
- Author(s)
  田中志樹, 石井良太, 船戸充, 川上養一
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Spontaneous and stimulated emission physics of aluminum nitride2023
- Author(s)
  R. Ishii, T. Nagashima, R. Yamamoto, T. Hitomi, M. Funato, and Y. Kawakami
- Organizer
  SPIE Photonics West
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Fundamental optical properties of AlN revealed by deep ultraviolet spectroscopy2023
- Author(s)
  R. Ishii, A. Yoshikawa, M. Funato, and Y. Kawakami
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Correlative microphotoluminescence spectroscopy on hybrid quantum well InGaN red LEDs2023
- Author(s)
  Z. Zhang, R. Ishii, K. Shojiki, M. Funato, D. Iida, K. Ohkawa, and Y. Kawakami
- Organizer
  The 14th Intern. Conf. on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] 窒化物半導体の多波長発光機構の解明と制御 -発光シンセサイザー創製を目指して-2022
- Author(s)
  川上養一, 松田祥伸, 石井良太, 船戸充
- Organizer
  第83回応用物理学会秋季学術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Radiative recombination and current injection efficiencies in deep UV LEDs grown on AlN/sapphire substrates with different defect densities2022
- Author(s)
  A. Muhin, M. Guttmann, V. Montag, N. Susilo, E. Ziffer, L. Sulmoni, S. Hagedorn, N. Lobo-Ploch, J. Rass, L. Cancellara, C. Netzel, S. Tanaka, R. Ishii, T. Wernicke, M. Funato, Y. Kawakami, and M. Kneissl
- Organizer
  Intern. Workshop on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Luminescence spectroscopies on 265-nm AlGaN DUV LEDs and AlN films grown on AlN substrates2022
- Author(s)
  R. Ishii, A. Yoshikawa, H. Kobayashi, M. Funato, and Y. Kawakami
- Organizer
  SPIE Photonics West on demand, online
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] HVPE 成長 AlN基板からの誘導放出の観測とその起源について2022
- Author(s)
  石井良太, 人見達矢, 永島徹, 山本玲緒, 船戸充, 川上養一
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Temperature-dependent electroluminescence spectroscopy on 265-nm AlGaN-based LEDs grown on AlN substrates2022
- Author(s)
  Ryota Ishii, Akira Yoshikawa, Mitsuru Funato, and Yoichi Kawakami
- Organizer
  IWSingularity 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Temperature-dependent microphotoluminescence study on green-emitting InGaN/GaN single quantum well grown on epitaxially laterally overgrown GaN2022
- Author(s)
  Z. Zhang, R, Ishii, M. Funato, and Y. Kawakami
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Temperature-dependent electroluminescence spectroscopy on 265-nm AlGaN-based LEDs grown on AlN substrates2022
- Author(s)
  R. Ishii, M. Funato, and Y. Kawakami
- Organizer
  The 3rd International Workshop on Materials Science and Advanced Electronics Created by Singularity
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] ELO基板上AlGaN量子井戸の低温から室温以上における時間積分・時間分解PLを用いた光学評価2022
- Author(s)
  田中志樹, 石井良太, N. Susilo, T. Wernicke, M. Kneissl, 船戸充, 川上養一
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Selectively and non-selectively excited photoluminescence study for AlGaN quantum wells grown on epitaxially laterally overgrown AlN templates2022
- Author(s)
  S. Tanaka, R. Ishii, N. Susilo, T. Wernicke, M. Kneissl, M. Funato, and Y. Kawakami
- Organizer
  The 3rd International Workshop on Materials Science and Advanced Electronics Created by Singularity
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Luminescence spectroscopies on 265-nm AlGaN DUV LEDs and AlN films grown on AlN substrates2022
- Author(s)
  Ryota Ishii, Mitsuru Funato, and Yoichi Kawakami
- Organizer
  SPIE PHOTONICS WEST 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Development of light emitting synthesizer based on nitride semiconductors2022
- Author(s)
  Y. Kawakami, Y. Matsuda, R. Ishii, and M. Funato
- Organizer
  41st Electronic Materials Symposium
- Invited
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] 超ワイドギャップ半導体AlNバルク単結晶における励起子誘導放出2022
- Author(s)
  石井良太, 船戸充, 川上養一
- Organizer
  日本学術振興会光電相互変換第125委員会第262回研究会
- Invited
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Influence of substrate misorientation on emission and waveguiding properties of blue (In,Al,Ga)N laser-like structure studied by synchrotron radiation microbeam X-ray diffraction2021
- Author(s)
  A. Kafar, R. Ishii, Y. Matsuda, T. Suski, P. Perlin, M. Funato, and Y. Kawakami, et al. (計12名)
- Organizer
  49th International School & Conference on the Physics of Semiconductors "Jaszowiec 2021", online
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Recent progress in deep-ultraviolet scanning near-field optical microscope: a tool visualizing the luminescence properties of Al-rich AlGaN active layers2021
- Author(s)
  R. Ishii, M. Funato, and Y. Kawakami
- Organizer
  SPIE Photonics West: 11686-51
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Recombination Mechanism in III-Nitride Based Singularity Structures by Scanning Near-field Optical Microscopy2021
- Author(s)
  Yoichi Kawakami, Ryota Ishii, and Mitsuru Funato
- Organizer
  The 8th Asian Conference on Crystal Growth and Crystal Technology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Si添加ホモエピタキシャルAlN薄膜の極低温下フォトルミネッセンス測定2021
- Author(s)
  石井良太，船戸充，川上養一，吉川陽，小林敬嗣
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] 選択および非選択光励起によるELO基板上AlGaN量子井戸の深紫外発光特性評価2021
- Author(s)
  田中志樹, 石井良太, N. Susilo, T. Wernicke, M. Kneissl, 船戸充, 川上養一
- Organizer
  第82回応用物理学会秋季学術講演会, online
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Epitaxially laterally overgrown AlGaN quantum wells studied by selectively and non-selectively excited photoluminescence2021
- Author(s)
  Shiki Tanaka, Ryota Ishii, Norman Susilo, Tim Wernicke, Michael Kneissl, Mitsuru Funato, and Yoichi Kawakami
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Si添加ホモエピタキシャルAlN薄膜の極低温下フォトルミネッセンス測定2021
- Author(s)
  石井良太, 吉川陽, 小林敬嗣, 船戸充, 川上養一
- Organizer
  第82回応用物理学会秋季学術講演会, online
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Recombination mechanism in III-nitride based singularity structures by scanning near-field optical microscopy2021
- Author(s)
  Y. Kawakami, R. Ishii, and M. Funato
- Organizer
  The 8th Asian Conference on Crystal Growth and Crystal Technology: C10-10-55
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Recent progress in deep-ultraviolet scanning near-field optical microscope: a tool visualizing the luminescence properties of Al-rich AlGaN active layers2021
- Author(s)
  Ryota Ishii, Mitsuru Funato, and Yoichi Kawakami
- Organizer
  SPIE PHOTONICS WEST (Online, Mar. 6-11, 2021),
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] エレクトロルミネッセンス・フォトルミネッセンス法によるAlN基板上265 nm帯AlGaN LEDの評価2020
- Author(s)
  石井良太, 吉川陽, 永瀬和宏, 船戸充, 川上養一
- Organizer
  電子情報通信学会研究会：D2020-6/CPM2020-27/LQE2020-57
- Data Source
  KAKENHI-PROJECT-20H05622
[Presentation] Exciton fine structure of aluminum nitride2020
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Organizer
  SPIE Photonics West
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] Exciton fine structure of aluminum nitride2020
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Organizer
  SPIE Photonics West
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] エレクトロルミネッセンス・フォトルミネッセンス法によるAlN基板上265 nm帯AlGaN LEDの評価2020
- Author(s)
  石井良太・吉川　陽・永瀬和宏・船戸　充・川上養一
- Organizer
  LQE CPM ED
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Exciton fine structure of aluminum nitride2020
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Organizer
  SPIE Photonics West, San Francisco, USA, 2020 (1-6 Feb., 2020) (invited)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Study of luminescence properties of InGaN layers with wide-range lateral indium content profiling2019
- Author(s)
  A. Kafar, R. Ishii, S .Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 青色・緑色発光InGaN量子井戸構造の高温環境下における顕微PLマッピング2019
- Author(s)
  石井良太, 小山友二, 船戸充, 川上養一
- Organizer
  第80回応用物理学会秋季学術講演会, 北海道大学
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Engineering of emission wavelength of InGaN quantum wells by fabrication of spatial off-cut variation2019
- Author(s)
  A. Kafar, R. Ishii, S. Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] Engineering of emission wavelength of InGaN quantum wells by fabrication of spatial off-cut variation2019
- Author(s)
  A. Kafar, R. Ishii, S. Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] Engineering of emission wavelength of InGaN quantum wells by fabrication of spatial off-cut variation2019
- Author(s)
  A. Kafar, R. Ishii, S. Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors, Okinawa, Japan (Nov. 10-15, 2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] 圧電素子を用いた光音響分光測定系の構築によるGaN の支配的な非輻射再結合過程の評価2019
- Author(s)
  山崎一人，石井良太，船戸充，川上養一
- Organizer
  応用物理学会
- Data Source
  KAKENHI-PROJECT-17H04810
[Presentation] 圧電素子を用いた光音響分光測定系の構築によるGaNの支配的な非輻射再結合過程の評価2019
- Author(s)
  山崎一人, 石井良太, 船戸充, 川上養一
- Organizer
  第６６回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 青色・緑色発光InGaN量子井戸構造の高温環境下における顕微PLマッピング2019
- Author(s)
  石井良太, 小山友二, 船戸充, 川上養一
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 深紫外近接場光学顕微鏡の開発とAlリッチAlGaN系特異構造のPLマッピング評価2019
- Author(s)
  石井良太, 船戸充,　川上養一
- Organizer
  第６６回応用物理学会春季学術講演会
- Invited
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] アニール処理スパッタAlN膜上AlGaN多重量子井戸構造の光学特性2019
- Author(s)
  正直花奈子, 石井良太, 上杉謙次郎, 船戸充, 川上養一, 三宅秀人
- Organizer
  第11回ナノ構造・エピタキシャル成長講演会
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] アニール処理スパッタAlN膜上AlGaN多重量子井戸構造の光学特性2019
- Author(s)
  正直花奈子, 石井良太, 上杉謙次郎, 船戸充, 川上養一, 三宅秀人
- Organizer
  第11回ナノ構造・エピタキシャル成長講演会, 広島大学
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Study of luminescence properties of InGaN layers with wide-range lateral indium content profiling2019
- Author(s)
  A. Kafar, R. Ishii, S .Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  第80回応用物理学会秋季学術講演会, 北海道大学
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Comparative study of AlGaN multiple quantum wells on annealed-sputtered-AlN and MOVPE-grown-AlN on sapphire substrates2019
- Author(s)
  K. Shojiki, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami and H. Miyake
- Organizer
  13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] High-temperature promoted nonradiative recombination at threading dislocations in blue-emitting InGaN quantum well2019
- Author(s)
  R. Ishii, Y. Koyama, M. Funato, and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] アニール処理スパッタAlN膜上AlGaN多重量子井戸構造の光学特性2019
- Author(s)
  正直花奈子, 石井良太, 上杉謙次郎, 船戸充, 川上養一, 三宅秀人
- Organizer
  第11回ナノ構造・エピタキシャル成長講演会
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] Study of luminescence properties of InGaN layers with wide-range lateral indium content profiling2019
- Author(s)
  A. Kafar, R. Ishii, S .Stanczyk, K. Gibasiewicz, S. Grzanka, T. Suski, P. Perlin, M. Funato and Y. Kawakami
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] High-temperature promoted nonradiative recombination at threading dislocations in blue-emitting InGaN quantum well2019
- Author(s)
  R. Ishii, Y. Koyama, M. Funato, and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors, Okinawa, Japan (Nov. 10-15, 2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] 深紫外近接場光学顕微鏡の開発とAlリッチAlGaN系特異構造のPLマッピング評価2019
- Author(s)
  石井良太, 船戸充,　川上養一
- Organizer
  第６６回応用物理学会春季学術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 深紫外近接場光学顕微鏡の開発とAlリッチAlGaN系特異構造のPLマッピング評価2019
- Author(s)
  石井良太，船戸充，川上養一
- Organizer
  応用物理学会
- Invited
- Data Source
  KAKENHI-PROJECT-17H04810
[Presentation] 圧電素子を用いた光音響分光測定系の構築によるGaNの支配的な非輻射再結合過程の評価'2019
- Author(s)
  山崎一人, 石井良太, 船戸充, 川上養一
- Organizer
  第６６回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] High-temperature promoted nonradiative recombination at threading dislocations in blue-emitting InGaN quantum well2019
- Author(s)
  R. Ishii, Y. Koyama, M. Funato, and Y. Kawakami
- Organizer
  9th Asia-Pacific Workshop on Widegap Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] Comparative study of AlGaN multiple quantum wells on annealed-sputtered-AlN and MOVPE-grown-AlN on sapphire substrates2019
- Author(s)
  K. Shojiki, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami and H. Miyake
- Organizer
  13th International Conference on Nitride Semiconductors, Washington, USA (July 7-12, 2019)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02615
[Presentation] Comparative study of AlGaN multiple quantum wells on annealed-sputtered-AlN and MOVPE-grown-AlN on sapphire substrates2019
- Author(s)
  K. Shojiki, R. Ishii, K. Uesugi, M. Funato, Y. Kawakami and H. Miyake
- Organizer
  13th International Conference on Nitride Semiconductors
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 青色・緑色発光InGaN量子井戸構造の高温環境下における顕微PLマッピング2019
- Author(s)
  石井良太, 小山友二, 船戸充, 川上養一
- Organizer
  第80回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] Development of a deep-ultraviolet scanning nearfield optical microscope for nano-spectroscopic characterizations of AlxGa1-xN (x:0~1) active layers2018
- Author(s)
  Ryota Ishii, Mitsuru Funato, and Yoichi Kawakami
- Organizer
  International Workshop on Nitride Semiconductors
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04810
[Presentation] Development of a deep-ultraviolet scanning nearfield optical microscope for nano-spectroscopic characterizations of AlxGa1-xN (x : 0 - 1) active layers2018
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Organizer
  International Workshop on Nitride Semiconductors
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 深紫外CW・時間分解PL分光法による12C/13C超格子の光学特性評価2018
- Author(s)
  石井良太, 鹿田真一, 寺地徳之, 神田久生, 渡邊幸志, 船戸充, 川上養一
- Organizer
  第65回応用物理学会春季学術講演会, 早稲田大学
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 深紫外CW・時間分解PL分光法による12C/13C超格子の光学特性評価2018
- Author(s)
  石井良太, 鹿田真一, 寺地徳之, 神田久生, 渡邊幸志, 船戸充, 川上養一
- Organizer
  第65回応用物理学会春季学術講演会, 早稲田大学
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 深紫外CW・時間分解PL 分光法による12C=13C超格子の光学特性評価2018
- Author(s)
  石井良太，鹿田真一，寺地徳之，神田久生，渡邊幸志，船戸充，川上養一
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-17H04810
[Presentation] Development of a deep-ultraviolet scanning nearfield optical microscope for nano-spectroscopic characterizations of AlxGa1-xN (x : 0 - 1) active layers2018
- Author(s)
  R. Ishii, M. Funato and Y. Kawakami
- Organizer
  International Workshop on Nitride Semiconductors
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 一軸性応力下におけるダイヤモンドの微分吸収スペクトル2017
- Author(s)
  石井良太, 鹿田真一, 船戸充, 川上養一
- Organizer
  第64回応用物理学会春季学術講演会
- Place of Presentation
  パシフィコ横浜
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 深紫外CWレーザにより生成したダイヤモンド結晶中の極低温励起子に対する同位体効果2017
- Author(s)
  石井良太, 鹿田真一, 寺地徳之, 神田久生, 渡邊幸志, 船戸充, 川上養一
- Organizer
  第78回応用物理学会秋季学術講演会, 福岡国際会議場
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 深紫外CW・時間分解PL 分光法による12C=13C超格子の光学特性評価2017
- Author(s)
  石井良太，鹿田真一，寺地徳之，神田久生，渡邊幸志，船戸充，川上養一
- Organizer
  第65回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-16H03861
[Presentation] 一軸性応力下におけるダイヤモンドの微分吸収スペクトル2017
- Author(s)
  石井良太，鹿田真一，船戸充，川上養一
- Organizer
  第64回応用物理学会春季学術講演会
- Place of Presentation
  パシフィコ横浜
- Year and Date
  2017-03-14
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 一軸性応力下におけるダイヤモンドの微分吸収スペクトル2017
- Author(s)
  石井良太，鹿田真一，船戸充，川上養一
- Organizer
  第64回応用物理学会春季学術講演会
- Place of Presentation
  パシフィコ横浜　神奈川県横浜市
- Year and Date
  2017-03-14
- Data Source
  KAKENHI-PROJECT-16H03861
[Presentation] 深紫外CWレーザーを用いた12Cと13Cの極低温励起子光物性評価2017
- Author(s)
  石井良太、鹿田真一、寺地徳之、神田久生、渡邊幸志、船戸充、川上養一
- Organizer
  第78回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-16H03861
[Presentation] 一軸性応力下におけるダイヤモンドの微分吸収スペクトル2017
- Author(s)
  石井良太, 鹿田真一, 船戸充, 川上養一
- Organizer
  第64回応用物理学会春季学術講演会
- Place of Presentation
  パシフィコ横浜
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] Optical properties of excitons in widegap semiconductors2017
- Author(s)
  Ryota Ishii, Mitsuru Funato, and Yoichi kawakami
- Organizer
  International Symposium on Photonics and Electronics Science and Engineering 2017
- Place of Presentation
  京都大学，桂キャンパス
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 深紫外CWレーザーを用いた12Cと13Cの極低温励起子光物性評価2017
- Author(s)
  石井良太、鹿田真一、寺地徳之、神田久生、渡邊幸志、船戸充、川上養一
- Organizer
  第78回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-17H04810
[Presentation] 深紫外CWレーザにより生成したダイヤモンド結晶中の極低温励起子に対する同位体効果2017
- Author(s)
  石井良太, 鹿田真一, 寺地徳之, 神田久生, 渡邊幸志, 船戸充, 川上養一
- Organizer
  第78回応用物理学会秋季学術講演会, 福岡国際会議場
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] GaNとAlNの物性定数の同定と(Al,Ga)N系半導体の物性予測2016
- Author(s)
  石井良太、船戸充, 川上養一
- Organizer
  第8回窒化物半導体結晶成長講演会
- Place of Presentation
  京都大学桂キャンパス
- Invited
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] Exciton fine structure in diamond studied by photoluminescence spectroscopy under uniaxial stress2016
- Author(s)
  R. Ishii, S. Shikata, M. Funato, and Y. Kawakami
- Organizer
  17th International Conference on Physics of Light-Matter Coupling in Nanostructures
- Place of Presentation
  東大寺文化センター
- Year and Date
  2016-03-28
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 一軸性応力下におけるダイヤモンドのフォトルミネッセンススペクトル2016
- Author(s)
  石井良太，鹿田真一，船戸充，川上養一
- Organizer
  応用物理学会
- Place of Presentation
  東京工業大学
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] Stress-dependent spectroscopy on single-crystalline diamond2016
- Author(s)
  R. Ishii, S. Shikata, M. Funato, and Y. Kawakami
- Organizer
  35th Electronic Materials Symposium
- Place of Presentation
  Laforet Biwako
- Data Source
  KAKENHI-PLANNED-16H06426
[Presentation] 単結晶ダイヤモンドの応力下分光2016
- Author(s)
  石井良太，鹿田真一，船戸充，川上養一
- Organizer
  第35回電子材料シンポジウム
- Place of Presentation
  ラフォーレ琵琶湖
- Year and Date
  2016-07-06
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 近接場過渡レンズ法によるInGaN単一量子井戸におけるキャリアダイナミクスの評価2016
- Author(s)
  塚本真大，石井良太，船戸充，川上養一
- Organizer
  応用物理学会
- Place of Presentation
  東京工業大学
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 近接場過渡レンズ法によるInGaN単一量子井戸におけるキャリアダイナミクスの評価2016
- Author(s)
  塚本真大, 石井良太, 船戸充, 川上養一
- Organizer
  第63回応用物理学会春季学術講演会
- Place of Presentation
  東京工業大学, 東京都目黒区
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 単結晶ダイヤモンドの応力下分光2016
- Author(s)
  石井良太、鹿田真一、船戸充、川上養一、
- Organizer
  第35回電子材料シンポジウム
- Place of Presentation
  ラフォーレ琵琶湖　滋賀県大津市
- Year and Date
  2016-07-06
- Data Source
  KAKENHI-PROJECT-16H03861
[Presentation] Stress-dependent spectroscopy on single-crystalline diamond2016
- Author(s)
  R. Ishii, S. Shikata, M. Funato, and Y. Kawakami
- Organizer
  35th Electronic Materials Symposium
- Place of Presentation
  Laforet Biwako
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] GaNとAlNの物性定数の同定と(Al,Ga)N系半導体の物性予測2016
- Author(s)
  石井良太，船戸充，川上養一
- Organizer
  第8回窒化物半導体結晶成長講演会
- Place of Presentation
  京都大学，桂キャンパス
- Year and Date
  2016-05-09
- Invited
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 過渡レンズ法を用いたGaN基板と薄膜における非輻射再結合過程の評価2015
- Author(s)
  塚本真大，石井良太,船戸充，川上養一
- Organizer
  応用物理学会
- Place of Presentation
  名古屋国際会議場
- Year and Date
  2015-09-13
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] 過渡レンズ法を用いたGaN基板と薄膜における非輻射再結合過程の評価2015
- Author(s)
  塚本真大, 石井良太, 船戸充, 川上養一
- Organizer
  第76回応用物理学会秋季学術講演会
- Place of Presentation
  名古屋国際会議場, 愛知県名古屋市
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15H05732
[Presentation] 多波長励起発光分離法を用いた InGaN薄膜のラマン散乱分光2015
- Author(s)
  石戸亮祐，石井良太，船戸充，川上養一
- Organizer
  電子情報通信学会
- Place of Presentation
  大阪市立大学
- Year and Date
  2015-11-26
- Data Source
  KAKENHI-PROJECT-15K17460
[Presentation] AlNのPLスペクトルにおける特異なピークの起源II
- Author(s)
  石井良太，船戸充，川上養一
- Organizer
  第75回応用物理学会秋季学術講演会
- Place of Presentation
  北海道札幌キャンパス
- Year and Date
  2014-09-17 – 2014-09-20
- Data Source
  KAKENHI-PROJECT-26886007
[Presentation] 窒化物半導体の発光機構解明と制御
- Author(s)
  川上養一，船戸充，石井良太
- Organizer
  第75回応用物理学会秋季学術講演会
- Place of Presentation
  北海道札幌キャンパス
- Year and Date
  2014-09-17 – 2014-09-20
- Invited
- Data Source
  KAKENHI-PROJECT-26886007

1. 船戸充 (70240827)

# of Collaborated Projects: 6 results

# of Collaborated Products: 75 results
2. Kawakami Yoichi (30214604)

# of Collaborated Projects: 5 results

# of Collaborated Products: 78 results
3. 岡本晃一 (50467453)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. Shikata Shinichi (00415689)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
5. 寺地徳之 (50332747)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
6. Watanabe Hideyuki

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
7. Kushibiki Junichi

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. Tanno Takenori

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Ogi Hirotugu

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. Nagakubo Akira

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. Majdi Saman

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. KUNIMOTO Takehiro

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
13. 三宅秀人

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 正直花奈子

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Ryota Ishii 石井 良太

Ishii Ryota 石井 良太

Research Projects

Research Products

Co-Researchers

超ワイドギャップ半導体の両極性電気伝導発現に向けた物性の解明と制御Principal Investigator

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Visible, long wavelength LEDs based on In-rich InGaN on ScAlMgO4 substrates

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Light emitting synthesizer : aiming to create the ultimate lighting devices

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ScAlMgO4基板上へのInリッチInGaN系LEDの実現

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Creation of ultrawide-bandgap-semiconductor exciton-engineering using deep-ultraviolet time and spatially resolved spectroscopies under extreme environmentsPrincipal Investigator

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Optical properties of super-widegap semiconductors studied by time and spatially resolved deep-ultraviolet spectroscopyPrincipal Investigator

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Physical properties of isotope diamond looking for further light element materials

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近接場分光（SNOM）による特異構造の発光機構解明と制御

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Optical properties of (Al,In,Ga)N-based semiconductors studied by spectroscopy under various perturbation fieldsPrincipal Investigator

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深紫外近接場分光による超ワイドギャップ半導体の物性解明

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Achievement of Tailor-made Lighting Sources by the Control of Nanoscopic Carrier Localization in Nitride Semiconductors

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磁場下偏光反射・偏光フォトルミネッセンス測定によるAlNの励起子状態の解明Principal Investigator

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[Journal Article] Radiative and nonradiative recombination processes in AlGaN quantum wells on epitaxially laterally overgrown AlN/sapphire from 10 to 500 K2024

Author(s)

Journal Title

Ryota Ishii 石井良太

Ishii Ryota 石井良太