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Development of extremely low-power consumption OLEDs using ICT emission

Research Project

Project/Area Number 17H03131
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Device related chemistry
Research InstitutionYamagata University

Principal Investigator

SASABE Hisahiro  山形大学, 大学院有機材料システム研究科, 准教授 (10570731)

Co-Investigator(Kenkyū-buntansha) 横山 大輔  山形大学, 大学院有機材料システム研究科, 准教授 (00518821)
片桐 洋史  山形大学, 大学院理工学研究科, 教授 (40447206)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Keywords有機EL / 有機半導体材料 / 有機合成化学 / 有機半導体デバイス / 光化学
Outline of Final Research Achievements

Thermally activated delayed fluorescence (TADF) emitters, which can realize 100% electron-to-photon conversion without use of precious platinum metals, are one of the most attractive candidates for high-performance organic light emitting devices (OLEDs). In this work, we tried to realize low-power-consumption and long life TADF OLEDs. Consequently, we successfully developed TADF OLEDs with an ultra-high power efficiency of 133 lm W–1 and an unprecedented low turn-on voltage of 2.22 V via the strategic use of exciplex host system. Further, we were able to develop a multifunctional hole-transport layer based on a hexaphenylbenzene skeleton to realize record-breaking efficient and stable green TADF OLEDs exhibiting EQE of 19.2% and operation lifetime at 50% (LT50) of over 20,000 h at an initial luminance of 1000 cd m-2.

Academic Significance and Societal Importance of the Research Achievements

低コストな第三世代のTADFにより超低消費電力・長寿命有機EL照明が実現できれば、爆発的な普及の大きな原動力となり、インパクトは大きい。有機ELは中小型ディスプレイで一般化しつつあり、大型でも製品化が進んでいる。超省電力有機ELデバイスの実現は、低炭素社会に大きく貢献するグリーンテクノロジーの実現であり、極めて大きな社会的意義がある。もちろん、発光材料は有機ELだけでなく、バイオイメージング、刺激応答性材料、非線形光学材料、イオンセンサー、植物栽培用光源など、多方面で重要な役割を果たす。本研究で得られる成果は、光化学、有機半導体物性物理の基礎学理の構築の立場から非常に意義があると思われる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (57 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (19 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 19 results) Presentation (33 results) (of which Int'l Joint Research: 15 results,  Invited: 12 results) Remarks (1 results) Patent(Industrial Property Rights) (3 results)

  • [Int'l Joint Research] South China University of Technology(China)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Spirobiacridine-based Host Material for Highly Efficient Blue Phosphorescent Organic Light-emitting Devices2020

    • Author(s)
      Arai Hiroki、Sasabe Hisahiro、Nakao Kohei、Masuda Yuki、Kido Junji
    • Journal Title

      Chemistry Letters

      Volume: 49 Issue: 3 Pages: 228-231

    • DOI

      10.1246/cl.190840

    • NAID

      130007805913

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A terpyridine-modified chrysene derivative as an electron transporter to improve the lifetime in phosphorescent OLEDs2020

    • Author(s)
      Owada Tsukasa、Sasabe Hisahiro、Sukegawa Yoshihito、Watanabe Taiki、Maruyama Tomohiro、Watanabe Yuichiro、Yokoyama Daisuke、Kido Junji
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 8 Issue: 9 Pages: 3200-3205

    • DOI

      10.1039/c9tc06393e

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Series of Imidazo[1,2‐f]phenanthridine‐Based Sky‐Blue TADF Emitters Realizing EQE of over 20%2019

    • Author(s)
      Ohsawa Tatsuya、Sasabe Hisahiro、Watanabe Taiki、Nakao Kohei、Komatsu Ryutaro、Hayashi Yuya、Hayasaka Yuya、Kido Junji
    • Journal Title

      Advanced Optical Materials

      Volume: 7 Issue: 5 Pages: 1801282-1801282

    • DOI

      10.1002/adom.201801282

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Review of Molecular Engineering for Horizontal Molecular Orientation in Organic Light-Emitting Devices2019

    • Author(s)
      Watanabe Yuichiro、Sasabe Hisahiro、Kido Junji
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 92 Issue: 3 Pages: 716-728

    • DOI

      10.1246/bcsj.20180336

    • NAID

      130007611700

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Novel Series of Thermally and Electrically Stable Hole-transporters End-capped by [1]Benzothieno[3,2-b][1]benzothiophenes for Organic Light-emitting Devices2019

    • Author(s)
      Kikuchi Takayoshi、Sasabe Hisahiro、Watanabe Yuichiro、Kamata Takahiro、Katagiri Hiroshi、Kido Junji
    • Journal Title

      Chemistry Letters

      Volume: 48 Issue: 3 Pages: 219-222

    • DOI

      10.1246/cl.180962

    • NAID

      130007607663

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A sky blue thermally activated delayed fluorescence emitter to achieve efficient white light emission through in situ metal complex formation2019

    • Author(s)
      Kato Yuki、Sasabe Hisahiro、Hayasaka Yuya、Watanabe Yuichiro、Arai Hiroki、Kido Junji
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 7 Issue: 11 Pages: 3146-3149

    • DOI

      10.1039/c8tc06041j

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chrysene-based Electron-transporters Realizing Highly Efficient and Stable Phosphorescent OLEDs2019

    • Author(s)
      Watanabe Taiki、Sasabe Hisahiro、Owada Tsukasa、Maruyama Tomohiro、Watanabe Yuichiro、Katagiri Hiroshi、Kido Junji
    • Journal Title

      Chemistry Letters

      Volume: 48 Issue: 5 Pages: 457-460

    • DOI

      10.1246/cl.180992

    • NAID

      130007642589

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Series of Dibenzofuran‐Based n‐Type Exciplex Host Partners Realizing High‐Efficiency and Stable Deep‐Red Phosphorescent OLEDs2019

    • Author(s)
      Ito Takashi、Sasabe Hisahiro、Nagai Yuji、Watanabe Yuichiro、Onuma Natsuki、Kido Junji
    • Journal Title

      Chemistry A European Journal

      Volume: 25 Issue: 30 Pages: 7308-7314

    • DOI

      10.1002/chem.201805907

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of Molecular Orientation in Organic Semiconductor Films using Weak Hydrogen Bonds2019

    • Author(s)
      Watanabe Yuichiro、Yokoyama Daisuke、Koganezawa Tomoyuki、Katagiri Hiroshi、Ito Takashi、Ohisa Satoru、Chiba Takayuki、Sasabe Hisahiro、Kido Junji
    • Journal Title

      Advanced Materials

      Volume: 31 Issue: 18 Pages: 1808300-1808300

    • DOI

      10.1002/adma.201808300

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-Efficiency Sky Blue-To-Green Fluorescent Emitters Based on 3-Pyridinecarbonitrile Derivatives2019

    • Author(s)
      Masuda Yuki、Sasabe Hisahiro、Arai Hiroki、Onuma Natsuki、Kido Junji
    • Journal Title

      Frontiers in Chemistry

      Volume: 7 Pages: 254-254

    • DOI

      10.3389/fchem.2019.00254

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Room‐Temperature Phosphorescence from a Series of 3‐Pyridylcarbazole Derivatives2019

    • Author(s)
      Sasabe Hisahiro、Kato Yuki、Watanabe Yuichiro、Ohsawa Tatsuya、Aizawa Naoya、Fujiwara Wataru、Pu Yong‐Jin、Katagiri Hiroshi、Kido Junji
    • Journal Title

      Chemistry ? A European Journal

      Volume: 25 Issue: 71 Pages: 16294-16300

    • DOI

      10.1002/chem.201903100

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Novel Sterically Bulky Hole Transporter to Remarkably Improve the Lifetime of Thermally Activated Delayed Fluorescence OLEDs at High Brightness2018

    • Author(s)
      T. Kamata, H. Sasabe*, M. Igarashi, J. Kido*
    • Journal Title

      Chem. Eur. J.

      Volume: 24 Issue: 18 Pages: 4590-4596

    • DOI

      10.1002/chem.201705262

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent Development of Pyrimidine-based OLED Materials2018

    • Author(s)
      R. Komatsu, H. Sasabe*, J. Kido*
    • Journal Title

      J. Photon. Ener.

      Volume: 8 Issue: 03 Pages: 032108-032108

    • DOI

      10.1117/1.jpe.8.032108

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultra High Power Efficiency Thermally Activated Delayed Fluorescent OLEDs by the Strategic Use of Electron Transport Materials2018

    • Author(s)
      H. Sasabe*, R. Sato, K. Suzuki, Y. Watanabe, C. Adachi, H. Kaji*, J. Kido*
    • Journal Title

      Adv. Opt. Mater.

      Volume: 6 Issue: 17 Pages: 1800376-1800376

    • DOI

      10.1002/adom.201800376

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Manipulating the Electronic Excited State Energies of Pyrimidine-Based Thermally Activated Delayed Fluorescence Emitters To Realize Efficient Deep-Blue Emission2017

    • Author(s)
      Komatsu Ryutaro、Ohsawa Tatsuya、Sasabe Hisahiro、Nakao Kohei、Hayasaka Yuya、Kido Junji
    • Journal Title

      ACS Applied Materials and Interfaces

      Volume: 9 Issue: 5 Pages: 4742-4749

    • DOI

      10.1021/acsami.6b13482

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Power Efficiency Blue-to-Green Organic Light-Emitting Diodes Using Isonicotinonitrile-Based Fluorescent Emitters2017

    • Author(s)
      Sasabe Hisahiro、Onuma Natsuki、Nagai Yuji、Ito Takashi、Kido Junji
    • Journal Title

      Chemistry An Asian Journal

      Volume: 12 Issue: 6 Pages: 648-654

    • DOI

      10.1002/asia.201601641

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Introduction of Twisted Backbone: A New Strategy to Achieve Efficient Blue Fluorescence Emitter with Delayed Emission2017

    • Author(s)
      Liu Ming、Komatsu Ryutaro、Cai Xinyi、Sasabe Hisahiro、Kamata Takahiro、Nakao Kouhei、Liu Kunkun、Su Shi-Jian、Kido Junji
    • Journal Title

      Advanced Optical Materials

      Volume: 5 Issue: 19 Pages: 1700334-1700334

    • DOI

      10.1002/adom.201700334

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unique Solid-State Emission Behavior of Aromatic Difluoroboronated β-Diketones as an Emitter in Organic Light-Emitting Devices2017

    • Author(s)
      Sasabe Hisahiro、Sasaki Kanako、Mamiya Michitaka、Suwa Yurie、Watanabe Taiki、Onuma Natsuki、Nakao Kohei、Yamaji Minoru、Kido Junji
    • Journal Title

      Chemistry An Asian Journal

      Volume: 12 Issue: 17 Pages: 2299-2303

    • DOI

      10.1002/asia.201700800

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Horizontally Orientated Sticklike Emitters: Enhancement of Intrinsic Out-Coupling Factor and Electroluminescence Performance2017

    • Author(s)
      Liu Ming、Komatsu Ryutaro、Cai Xinyi、Hotta Katsuyuki、Sato Shugo、Liu Kunkun、Chen Dongcheng、Kato Yuki、Sasabe Hisahiro、Ohisa Satoru、Suzuri Yoshiyuki、Yokoyama Daisuke、Su Shi-Jian、Kido Junji
    • Journal Title

      Chemistry of Materials

      Volume: 29 Issue: 20 Pages: 8630-8636

    • DOI

      10.1021/acs.chemmater.7b02403

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] スピロビアクリジン誘導体ホスト材料を用いた高効率青色リン光有機 EL 素子2020

    • Author(s)
      荒井博貴、笹部久宏、中尾晃平、増田雄貴、城戸淳二
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 遅延蛍光を発現するアルミニウム錯体の開発と高性能塗布型有機EL2020

    • Author(s)
      中尾晃平、笹部久宏、渋谷勇助、松永周、片桐洋史、城戸淳二
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 深赤色有機リン光有機EL素子におけるp型エキサイプレックスホストの影響2020

    • Author(s)
      齋藤大樹、笹部久宏、菊池貴良、伊藤聖、城戸淳二
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] カルバゾール誘導体ホスト材料中での熱活性化遅延系高分子の分子配向2020

    • Author(s)
      笹部 久宏、近安佑樹、大久哲、荒井博貴、大澤達矢、小松龍太郎、渡邊雄一郎、横山大輔、城戸 淳二
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hexaphenylbenzene-Based Hole-Transporters Realizing Enhnanced Lifetime of TADF OLEDs2019

    • Author(s)
      Hisahiro Sasabe, Takahiro Kamata, Nozomi Ito, Junji Kido
    • Organizer
      International Conference on Energy, Materials, and Photonics (EMP19, S3-5)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hexaphenylbenzene-Based Hole-Transporters Realizing Enhnanced Lifetime of TADF OLEDs2019

    • Author(s)
      Hisahiro Sasabe, Takahiro Kamata, Nozomi Ito, Junji Kido
    • Organizer
      SPIE Optics and Photonics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A Series of Mutifunctional Hole-Transporters Realizing High-Efficiency, Long Lifetime in TADF OLEDs2019

    • Author(s)
      Hisahiro Sasabe, Takahiro Kamata, Nozomi Ito, Junji Kido
    • Organizer
      11th Asian Conference on Organic Electronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高効率・長寿命な緑色リン光有機ELを実現するターピリジン含有電子輸送材料群2019

    • Author(s)
      丸山 朋洋、笹部 久宏、渡邊 雄一郎、大和田 宰、吉岡 良、城戸 淳二
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ベンゾチエノカルバゾール誘導体ホスト材料群と緑色有機EL素子2019

    • Author(s)
      荒井 綾斗、笹部 久宏、中尾 晃平、城戸 淳二
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Benzothienocarbazole derivative-based host materials for long lifetime green phosphorescent OLEDs2019

    • Author(s)
      Ayato Arai, Hisahiro Sasabe, Kohei Nakao, Yuki Masuda, Junji Kido
    • Organizer
      11th Asian Conference on Organic Electronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terpyridine-containing electron-transporters for high-efficiency and long life green phosphorescent OLEDs2019

    • Author(s)
      Tomohiro Maruyama, Hisahiro Sasabe, Yuichiro Watanabe, Tsukasa Owada, Ryo Yoshioka and Junji Kido
    • Organizer
      11th Asian Conference on Organic Electronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Spirobiacridine-based Host Material for Highly Efficient Blue Thermally Activated Delayed Fluorescent Organic Light-emitting Devices2019

    • Author(s)
      Hiroki Arai, Hisahiro Sasabe, Kohei Nakao, Tatsuya Ohsawa, Junji Kido
    • Organizer
      The Second International Conference of Polymeric and Organic Materials in Yamagata University (2nd IPOMY)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terpyridine-containing chrysene derivatives as an electron-transporter to improve lifetime in green phosphorescent OLEDs2019

    • Author(s)
      Tsukasa Owada, Hisahiro Sasabe, Yoshihito Sukegawa, Taiki Watanabe, Tomohiro Maruyama, Yuichiro Watanabe, Daisuke Yokoyama, Junji Kido
    • Organizer
      The Second International Conference of Polymeric and Organic Materials in Yamagata University (2nd IPOMY)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sky Blue-to-Green Thermally Activated Delayed Fluorescent Emitters based on 3-Pyridinecarbonitrile Derivatives2019

    • Author(s)
      Yuki Masuda, Hisahiro Sasabe, Hiroki Arai, Natsuki Onuma, Junji Kido
    • Organizer
      The Second International Conference of Polymeric and Organic Materials in Yamagata University (2nd IPOMY)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヘキサフェニルベンゼン誘導体ホール輸送材料を用いた緑・水色熱活性化遅延蛍光有機 EL 素子の長寿命化2019

    • Author(s)
      鎌田 嵩弘、伊藤望、笹部 久宏、五十嵐 正拓、城戸 淳二
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] クリセン誘導体電子輸送材料群の開発と有機EL素子への応用2019

    • Author(s)
      大和田 宰、笹部 久宏、渡邊 大貴、丸山 朋洋、渡邊 雄一郎、片桐 洋史、城戸 淳二
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A novel sterically bulky hole transporter to remarkably improve the lifetime of TADF OLEDs at high brightness2018

    • Author(s)
      Hisahiro Sasabe, Takahiro Kamata, Masahiro Igarashi, Junji Kido
    • Organizer
      SPIE Optics and Photonics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ベンゾチエノベンゾチオフェン(BTBT)骨格含有新規ホール輸送材料群2018

    • Author(s)
      菊地貴良、笹部久宏、渡邊雄一郎、片桐洋史、城戸淳二
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of A Hexaphenylbenzene-based Hole- transporter Realizing Long Life Green TADF OLEDs at High Brightness2018

    • Author(s)
      Takahiro Kamata, Hisahiro Sasabe, Masahiro Igarashi, and Junji Kido
    • Organizer
      The 19th International Workshop on Inorganic and Organic Electroluminescence & 2018 International Conference on the Science and Technology of Emissive Displays and Lighting (EL2018)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A Structure-Property Relationship of Pyrimidine-based Blue TADF Emitters Realizing EQE close to 25%2018

    • Author(s)
      Kohei, Nakao, Hisahiro Sasabe, Ryutaro Komatsu, Yuya Hayasaka, Tatsuya Ohsawa, and Junji Kido
    • Organizer
      The 19th International Workshop on Inorganic and Organic Electroluminescence & 2018 International Conference on the Science and Technology of Emissive Displays and Lighting (EL2018)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A Sky Blue Thermally Activated Delayed Fluorescent (TADF) Emitter Realizing Efficient White Light Emission Through In Situ Metal Complex Formation2018

    • Author(s)
      Yuki Kato, Hisahiro Sasabe, Yuya Hayasaka, Yuichiro Watanabe, Junji Kido
    • Organizer
      Materials Research Society Fall 2018 Meeting; Boston
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] A novel series of hole transport materials containing [1]benzothieno[3,2-b] benzothiophene (BTBT) moieties for organic light-emitting devices2018

    • Author(s)
      Takayoshi Kikuchi, Hisahiro Sasabe, Yuichiro Watanabe, Junji Kido
    • Organizer
      Materials Research Society Fall 2018 Meeting; Boston
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Highly Efficient Blue-to-Green Fluorescent Emitters based on 3-Pyridinecarbonitrile Derivatives2018

    • Author(s)
      Yuki Masuda, Hisahiro Sasabe, Natsuki Onuma, Junji Kido
    • Organizer
      The 10th Asian Conference on Organic Electronics
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 超低消費電力緑色熱活性化遅延蛍光有機EL素子の開発2018

    • Author(s)
      佐藤 瞭、笹部 久宏、鈴木 克明、安達 千波矢、梶 弘典、城戸 淳二
    • Organizer
      第65回応用物理学会春季学術講演会、早稲田、早稲田大学西早稲田キャンパス、2018年3月18日、18p-D102-2
    • Related Report
      2017 Annual Research Report
  • [Presentation] スピロビアクリジン含有水平配向性TADF材料を用いた超高効率有機EL素子2018

    • Author(s)
      小松 龍太郎、Liu Ming、Cai Xinyi、堀田 克之、佐藤 守悟、Liu Kunkun、Chen Dongcheng、加藤 裕貴、笹部 久宏、大久 哲、硯里 善幸、横山 大輔、Su Shi-Jian、城戸 淳二
    • Organizer
      第65回応用物理学会春季学術講演会、早稲田、早稲田大学西早稲田キャンパス、2018年3月18日、18p-D102-3
    • Related Report
      2017 Annual Research Report
  • [Presentation] ヘキサフェニルベンゼン誘導体ホール輸送材料を用いた高輝度・長寿命緑色 TADF 素子2018

    • Author(s)
      鎌田 嵩弘、笹部 久宏、五十嵐 正拓、城戸 淳二
    • Organizer
      第65回応用物理学会春季学術講演会、早稲田、早稲田大学西早稲田キャンパス、2018年3月18日、18p-D102-4
    • Related Report
      2017 Annual Research Report
  • [Presentation] High-Performance Pyrimidine-Based TADF Emitters Realizing Pure Blue-to-Green Emission with EQE of 25%2017

    • Author(s)
      Hisahiro Sasabe, Ryutaro Komatsu, Kohei Nakao, Yuya Hayasaka, Junji Kido,
    • Organizer
      Display Week 2017, 50.4, Los Angeles Convention Center, Los Angeles, California, USA, May 25th, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High-Performance Pyrimidine-Based TADF Emitters Realizing Pure Blue-to-Green Emission2017

    • Author(s)
      Hisahiro Sasabe
    • Organizer
      The 2nd international TADF workshop, Session 4-5, Kyushu University, Fukuoka, Japan, July 19th-21st, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Highly Efficient Pure Blue-to-Green emission from Pyrimidine-Based TADF Emitters2017

    • Author(s)
      Hisahiro Sasabe, Ryutaro Komatsu, Kohei Nakao, Yuya Hayasaka, Junji Kido
    • Organizer
      SPIE Optics and Photonics, Paper 10362-2, Aug. 6, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Realizing Deep-Blue TADF Emission with CIE of (0.16, 0.15) Using a Highly Twisted Acceptor Unit2017

    • Author(s)
      Tatuya Ohsawa, Ryutaro Komatsu, Hisahiro Sasabe, Kohei Nakao, Yuya Hayasaka, Junji Kido
    • Organizer
      Display Week 2017, P-191, Los Angeles Convention Center, Los Angeles, California, USA, May 21-26th, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Highly Efficient Deep-blue TADF Emitters Exhibiting CIE of (0.16, 0.15) and EQE of 18% Using a Highly Twisted Acceptor Unit2017

    • Author(s)
      Ryutaro Komatsu, Tatsuya Ohsawa, Hisahiro Sasabe, Kohei Nakao, Yuya Hayasaka, Junji Kido
    • Organizer
      The 2nd international TADF workshop, poster No. 25, Kyushu University, Fukuoka, Japan, July 19th-21st, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Significant Enhancement of Blue OLED Performances through Molecular Engineering of Pyrimidine-based Emitter2017

    • Author(s)
      Kohei Nakao, Hisahiro Sasabe, Ryutaro Komatsu, Yuya Hayasaka, Tatsuya Ohsawa, Junji Kido
    • Organizer
      The 2nd international TADF workshop, poster No. 25, Kyushu University, Fukuoka, Japan, July 19th-21st, 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 外部量子効率25%を実現するピリミジン誘導体発光材料群2017

    • Author(s)
      笹部久宏、小松龍太郎、大澤達也、中尾晃平、早坂裕哉、城戸淳二、
    • Organizer
      第66回高分子討論会、松山、愛媛大学城北キャンパス、2017年、9月21日、2T04
    • Related Report
      2017 Annual Research Report
  • [Remarks] 城戸・笹部研究室ホームページ

    • URL

      http://oled.yz.yamagata-u.ac.jp/index.html

    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 熱活性遅延蛍光材料およびそれを用いた有機EL素子2020

    • Inventor(s)
      笹部久宏、中尾晃平、梅津和将、城戸淳二
    • Industrial Property Rights Holder
      笹部久宏、中尾晃平、梅津和将、城戸淳二
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-017730
    • Filing Date
      2020
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] テトラピリジン誘導体およびそれらを用いた有機EL素子2020

    • Inventor(s)
      笹部久宏、丸山朋洋、大和田宰、城戸淳二
    • Industrial Property Rights Holder
      笹部久宏、丸山朋洋、大和田宰、城戸淳二
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-042607
    • Filing Date
      2020
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] アリールアミン誘導体、それを用いたホール輸送材料及び有機EL素子2019

    • Inventor(s)
      笹部久宏、鎌田嵩弘、伊藤望、荒木卓、城戸淳二
    • Industrial Property Rights Holder
      笹部久宏、鎌田嵩弘、伊藤望、荒木卓、城戸淳二
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-007253
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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