研究概要・目的

有機π共役材料の新規合成と応用

分子内でπ電子が広く非局在化している有機π共役化合物は、光応答や電荷移動特性などに優れます。分子骨格や置換基、共役長、ねじれなどを適切に調整することで、多様な機能を狙って引き出せます。中野研究室では標的とする機能性をもつ分子を分子軌道計算などを駆使しつつデザインし、実際に合成して機能性の発現を評価するという研究を行っています。設計した分子を実際に合成でき、しかも狙い通りの特性が得られたときに感じる手応えや面白さは、材料開発研究の醍醐味だと思います。
　研究テーマとしては、多様な波長域を吸収する色素材料、薄膜状態で高導電性を示す有機材料に加え、スピントロニクス応用を目指した“らせん型”の半導体材料の開発に取り組んでいます。

Organic π-conjugated compounds have π-electrons that are spread out (delocalized) across the molecule, which often gives them strong light responses and efficient charge transport. By tuning the molecular backbone, substituents, conjugation length, and molecular twisting, we can design and draw out a wide variety of functions. In the Nakano Lab, we use tools such as molecular orbital calculations to design molecules with targeted properties, then synthesize them and evaluate whether the desired functions actually appear. One of the most exciting parts of materials research is the moment when a designed molecule can be made—and it shows the expected optical, electrical, or catalytic performance. Our current research includes dye molecules that absorb different wavelength ranges, organic materials that show high electrical conductivity in thin films, and “helical” (spiral-shaped) semiconductor materials aimed at spintronics applications.


発表論文など
published papers

Doping of 1,1-dicyano-2,2-bis(methylthio)ethylene in ZnO to improve photoresponce of organic solar cells and photodetectors under UV-cut light irradiation, JJAP, 2024, 63 02SP05.

Naphthalene diimide-incorporated helical thienoacene: a helical molecule with high electron mobility, good solubility, and thermally stable solid phase, Chem. Commun., 2020, 56, 12343-12346.