Orientation-controlled organic pn junction interface by VOC-free deposition technique

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04161
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21050:Electric and electronic materials-related
• Research Institution: Nara National College of Technology (2023); Kindai University Technical College (2021-2022)
• Principal Investigator: Misaki Masahiro 奈良工業高等専門学校, 電気工学科, 准教授 (00462862)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 有機半導体 / 成膜法 / イオン液体 / ドーピング

Outline of Final Research Achievements

Friction transfer technique, which is known as a method for controlling molecular orientation of conjugated polymers, has been successfully developed as a thin film formation for small molecule organic semiconductors. Polyethylene oxide, which could be removed by organic solvents such as ethanol, was found to function as a binder for small molecules and to play an important role in the formation of small molecule films. We also found that Polyethylene oxide could be effectively utilized as a doping accelerator for ionic liquids.

Free Research Field

有機半導体科学

Academic Significance and Societal Importance of the Research Achievements

揮発性有機化合物を用いない塗布成膜技術は、環境や人体への負荷を低減することが可能で、プリンテッドエレクトロニクスの実用化における共通基盤技術の発展に寄与するものである。また、イオン液体を用いたドーピング技術の検証は、有機エレクトロニクスの基本原理に関わるものであり、学術的な意義がある。