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Development of Highly Phosphorescent Organometallic Complexes Based on Precise Control of Excimer Emission

Research Project

Project/Area Number 16H04194
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Organic and hybrid materials
Research InstitutionOsaka Prefecture University

Principal Investigator

Yagi Shigeyuki  大阪府立大学, 工学(系)研究科(研究院), 教授 (40275277)

Research Collaborator Sakurai Yoshiaki  
Koseki Shiro  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Keywords有機金属錯体 / 有機白金(II)錯体 / りん光 / エキシマー / 有機EL / 有機エレクトロニクス / 発光材料
Outline of Final Research Achievements

Aimed at development of phosphorescent organometallic complexes of which emission color is tunable by controlling the excimer formation, we elucidated the mechanism of excimer emission of organoplatinum(II) complexes by combination of photoluminescence spectroscopic measurements with X-ray crystallographic analyses and theoretical calculations, especially focusing on substituent and steric effects of the cyclometalated and ancillary ligands. Based on the obtained results, we designed and synthesized novel organoplatinum(II) complexes exhibiting intense excimer phosphorescent emission. Using these complexes as emitting materials, we also fabricated excimer-based electroluminescent devices such as white organic light-emitting diodes and demonstrated how useful the developed excimer-phosphorescent complexes are as emitting materials.

Academic Significance and Societal Importance of the Research Achievements

エキシマー発光を利用した材料設計が注目されているが、エキシマー形成は基底状態の分子とその励起種との相互作用に基づくため、その制御因子を実験的に究明することは困難である。我々は、有機白金(II)錯体に焦点をあて、実験化学によってエキシマー形成を支配する要因を明らかにするとともに、エキシマー発光性有機白金(II)錯体の分子設計指針・合成方法を確立し、発光材料としての有用性を実証した。以上の成果は、有機金属錯体の光物理過程を構造化学的観点から解明できた点で学術的意義が大きいだけでなく、デバイス実装への可能性を提示できた点において社会的意義も大きい。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (29 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (20 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results) Remarks (2 results)

  • [Int'l Joint Research] CSIR学際的科学技術国立研究所(インド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] インド化学工業研究評議会-学際的科学技術国立研究所(CSIR-NIIST)(インド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] インド科学工業研究評議会-学際的科学技術国立研究所(CSIR-NIIST)(インド)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Functionalization of Organometallic Complexes Aimed at Solution-Processed Organic Light-Emitting Diode: Strategic Molecular Designs of Phosphorescent Dendritic Emitters2019

    • Author(s)
      八木繁幸, 岡村奈生己, 前田壮志
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 77 Issue: 1 Pages: 26-39

    • DOI

      10.5059/yukigoseikyokaishi.77.26

    • NAID

      130007555679

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2019-01-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of Excimer Phosphorescence by Steric Effects in Cyclometalated Platinum(II) Diketonate Complexes Bearing Peripheral Carbazole Moieties towards Application in Non-doped White OLED2018

    • Author(s)
      Naoki Okamura, Kazuaki Egawa, Takeshi Maeda, Shigeyuki Yagi
    • Journal Title

      New. J. Chem.

      Volume: 42 Issue: 14 Pages: 11583-11592

    • DOI

      10.1039/c8nj01526k

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Janus-Type Dendritic Organoiridium(III) Complex Bearing Hole- and Electron-Transporting Moieties: Synthesis, Luminescence Properties, and OLED Applications2018

    • Author(s)
      Naoki Okamura, Takeshi Maeda, Shigeyuki Yagi
    • Journal Title

      Bull. Chem. Soc. Jpn.

      Volume: 91 Issue: 9 Pages: 1419-1428

    • DOI

      10.1246/bcsj.20180139

    • NAID

      130007484317

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photokinetic study on remarkable excimer phosphorescence from heteroleptic cyclometalated platinum(II) complexes bearing a benzoylated 2-phenylpyridinate ligand2018

    • Author(s)
      N. Okamura, T. Maeda, H. Fujiwara, A. Soman, K. N. Narayanan Unni, A. Ajayaghosh, S. Yagi
    • Journal Title

      Phys. Chem. Chem. Phys

      Volume: 20 Issue: 1 Pages: 542-552

    • DOI

      10.1039/c7cp06944h

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] リン光性シクロメタル化白金錯体の二量化による分子内エキシマー発光制御2019

    • Author(s)
      辻元英孝, 井上航輝, 山下晃平, 布袋純一, 前田壮志, 八木繁幸
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] エキシマー発光制御を指向した有機白金(II)二核錯体の開発2019

    • Author(s)
      布袋純一, 山下晃平, 前田壮志, 八木繁幸
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] フェニレン基で連結した有機白金(II)二核錯体の発光特性2019

    • Author(s)
      布袋純一, 山下晃平, 前田壮志, 八木繁幸
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Control of Excimer Formation of Phosphorescent Organoplatinum(II) Complexes2018

    • Author(s)
      Shigeyuki Yagi
    • Organizer
      Collaborative Conference on Materials Research 2018 (CCMR 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Starburst-Type Triarylphosphine Oxide Trimers as Electron-Transporting Materials in Solution-Processed Multilayer OLED2018

    • Author(s)
      Ryousuke Hiraoka, Naoki Okamura, Takeshi Maeda, Shigeyuki Yagi
    • Organizer
      2018 KJF International Conference on Organic Materials for Electronics and Photonics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] りん光OLEDを指向した有機金属錯体の創成:低分子からデンドリマーまで2018

    • Author(s)
      八木繁幸
    • Organizer
      2018年度色材研究発表会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 有機白金(II)錯体の二量化によるエキシマー発光制御2018

    • Author(s)
      山下晃平, 前田壮志, 八木繁幸
    • Organizer
      2018年度色材研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 新規りん光性有機白金(II)錯体のメカノクロミック発光2018

    • Author(s)
      有薗春香, 岡村奈生己, 前田壮志, 八木繁幸, 藤原秀紀
    • Organizer
      2018年度色材研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] りん光デンドリマーを用いた積層型有機発光ダイオードの作製2018

    • Author(s)
      八木繁幸
    • Organizer
      大阪府立大学産官学共同研究会第115回テクノラボツアー
    • Related Report
      2018 Annual Research Report
  • [Presentation] Elucidation of Excimer Formation of Posphorescent Cyclometalated Platinum(II) Complexes at the Molecular Level2018

    • Author(s)
      Naoki Okamura, Takeshi Maeda, Hideki Fujiwara, Anjaly Soman, Satyajit Das, Narayanan Unni, Ayyappanpillai Ajayaghosh, Shigeyuki Yagi
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 三座型シクロメタル化配位子を有するりん光性白金(II)錯体の発光メカノクロミズム2018

    • Author(s)
      有薗春香、岡村奈生己、前田壮志、八木繁幸
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Tuning of Excimer Emission from Phosohorescent Organoplatinum(II) Complexes Aimed at Non-Doped White Organic Light-Emitting Diode2017

    • Author(s)
      Naoki Okamura, Takeshi Maeda, Shigeyuki Yagi
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶應義塾大学日吉キャンパス(神奈川県横浜市)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Annual Research Report
  • [Presentation] Development of Phosphorescent Organometallic Complexes for Solution-Processed OLED2017

    • Author(s)
      Shigeyuki Yagi
    • Organizer
      Collaborative Conference on Materials Research 2017 (CCMR 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Blue Phosphorescent Organoiridium(III) Complexes Bearing Hole- and Electron-Transporting Dendrons for Non-Doped Organic Light-Emitting Diodes2017

    • Author(s)
      Naoki Okamura, Takeshi Maeda, Shigeyuki Yagi
    • Organizer
      8th East Asia Symposium on Functional Dyes and Advanced Materials (EAS8)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phosphorescent Organometallic Complexes for OLED Application. From Small Molecules to Dendrimers2017

    • Author(s)
      Shigeyuki Yagi
    • Organizer
      8th East Asia Symposium on Functional Dyes and Advanced Materials (EAS8)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Functional Chromophoric Systems Based on Fused Phenazines2017

    • Author(s)
      Shigeyuki Yagi
    • Organizer
      International Conference on Emerging Frontiers in Chemical Sciences 2017 (EFCS2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Phosphorescent Dipyridophenazine-Platinum(II) Complexes Bearing Carbazole-Appended Acetylide Ligands for Non-Doped Organic Light-Emitting Diodes2017

    • Author(s)
      Hiroki Matsuura, Takeshi Maeda, Shigeyuki Yagi, Yoshiaki Sakurai
    • Organizer
      Joint Symposium of Asia Five Universities
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 単結晶X線構造解析を利用したシクロメタル化白金(II)アセチルアセトナート錯体のエキシマー構造の推定2017

    • Author(s)
      岡村奈生己、前田壮志、藤原秀紀、Das Satyajit、Ajayaghosh Ayyappanpillai、八木繁幸
    • Organizer
      第29回配位化合物の光化学討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Highly Efficient Excimer Phosphorescence from Cyclometalated Platinum(II) Complexes with Benzoylated Phenylpyridinate Ligands2016

    • Author(s)
      Naoki Okamura, Shigeyuki Yagi, Takeshi Maeda, and Hiroyuki Nakazumi
    • Organizer
      The 26th IUPAC Symposium on Photochemistry
    • Place of Presentation
      大阪市中央公会堂(大阪府大阪市)
    • Year and Date
      2016-04-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有機EL用りん光性有機金属錯体の開発2016

    • Author(s)
      八木繁幸
    • Organizer
      日本真空学会関西支部・日本真空工業会関西支部秋季講演会
    • Place of Presentation
      ホテル大阪ベイタワー(大阪府大阪市)
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Remarks] http://www2.chem.osakafu-u.ac.jp/ohka/ohka6/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 大阪府立大学大学院工学研究科物質・化学系専攻応用化学分野有機機能化学研究グループ

    • URL

      http://www2.chem.osakafu-u.ac.jp/ohka/ohka6/

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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