Development of solution-processible highly crystalline organic semiconductor materials using reversible complexation of boron atom and their applications
Project/Area Number |
17K17937
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Organic and hybrid materials
Organic chemistry
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Research Institution | Kyushu University |
Principal Investigator |
MATSUO Kyohei 九州大学, 稲盛フロンティア研究センター, 特別研究員(SPD) (00778904)
|
Project Period (FY) |
2017-04-01 – 2019-03-31
|
Project Status |
Completed (Fiscal Year 2018)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | 有機半導体 / 有機発光ダイオード / ホウ素 |
Outline of Final Research Achievements |
Donor-acceptor type thermally activated delayed fluorescence molecules containing boronate-ester and boronate-thioester moieties as electron-accepting units were synthesized. High performance organic light-emitting diodes (OLEDs) based on these molecules have been successfully fabricated. While OLEDs with a boronate-thioester-based emitter achieved a high external electroluminescence quantum efficiency of 20%, OLEDs with a boronate-ester-based emitter exhibited deep-blue electroluminescence with external electroluminescence quantum efficiency of 12%.
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Academic Significance and Societal Importance of the Research Achievements |
有機発光ダイオードに代表される有機エレクトロルミネッセンス素子は、テレビやスマートフォンのディスプレイ等に実用化が進められており、高効率な発光材料の開発が望まれている。特に、フルカラー表示や白色光源に必要な青色発光材料では材料が限られており、大きな課題となっている。本研究では、分子を構成する元素をわずかに変えることで、発光効率や発光色が大きく変わることを見出し、優れた青色発光材料の開発に成功した。
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Report
(3 results)
Research Products
(11 results)