Development of high-performance semiconductor molecules utilizing molecular and electronic skeletons of phenacenes

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K05648
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 35030:Organic functional materials-related
• Research Institution: Okayama University
• Principal Investigator: Okamoto Hideki 岡山大学, 自然科学学域, 准教授 (30204043)
• Co-Investigator(Kenkyū-buntansha): 山路 稔 群馬大学, 大学院理工学府, 准教授 (20220361)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 有機半導体 / フェナセン / 電界効果型トランジスタ / FET / 多環芳香族化合物

Outline of Final Research Achievements

Development of new high-performance organic semiconductors is one of the central issues in organic electronics. In this study, synthesis of novel phenacene-based organic semiconductors and their performance of active layers in field-effect transistor devices were investigated. The phenacene molecules were successfully synthesized through Mallory photoreactions of the corresponding diarylethene precursors. On the bases of the relationships between the phenacene structures and the performance of organic semiconductors, factors for designing a future high-performance organic semiconductors were obtained.

Free Research Field

有機光化学

Academic Significance and Societal Importance of the Research Achievements

有機半導体材料は，柔軟，軽量で材料設計の自由度が高ことなどの多くの利点を有しているが，安定で高性能な材料はいまだに限られているのが現状である．本研究で得られた有機半導体材料の高移動度化に対する指針は，耐久性があり，高性能な未来の有機半導体を開発するために有効であると考えられる．特にフェナセンは，従来の有機分子に比べて安定であるため，耐久性のある有機電子デバイスの作製に展開できる可能性があると期待される．