2023 Fiscal Year Final Research Report
Investigation of donor/acceptor interactions toward high-performance organic near-infrared (NIR) lasers beyond 900 nm
| Project/Area Number |
22K20536
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0501:Physical chemistry, functional solid state chemistry, organic chemistry, polymers, organic materials, biomolecular chemistry, and related fields
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| Research Institution | Kyushu University |
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Principal Investigator |
TANG XUN 九州大学, 工学研究院, 学術研究員 (70961754)
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| Project Period (FY) |
2022-08-31 – 2024-03-31
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| Keywords | Organic electronics / Organic lasers / D/A interactions |
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| Outline of Final Research Achievements |
This research is focusing on the understanding and manipulating the electronic donor (D) and acceptor (A) interactions for realizing organic lasers with longer wavelength. By incorporating strong donor and acceptor moieties, the emission can be shifted to near-infrared (NIR) region. Furthermore, after rationally inserting the functional spacers between D and A moieties, the molecules can obtain large gain coefficient. In general, this research proposes stable organic laser cores with multiple-resonance effect, which has a low lasing threshold and the triplet upconversion property. Furthermore, this research achieved high performance organic distributed feedback lasers with the wavelength exceeding 900 nm. During this research, three papers have been published on Angew. Chem., Adv. Mater., and Nat. Commun., also, three oral (including one invited presentation) and one poster presentation have been taken in the international conferences.
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| Free Research Field |
Organic electronics
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| Academic Significance and Societal Importance of the Research Achievements |
The research achievement clarifies the underlying mechanism of electron donating and accepting interactions to achieve high efficiency and radiative rate. Thus, potential strategies are proposed to realize high performance organic light emitting devices and near-infrared organic lasers.
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