液晶性を活用した有機半導体の高速製膜およびデバイス応用

カテゴリ：部門大会

論文No：3-P1-6

グループ名：【A】令和７年電気学会基礎・材料・共通部門大会

発行日：2025/8/27

タイトル(英語)：

著者名：鈴木 一世(東京科学大学)，飯野 裕明(東京科学大学)

著者名(英語)：

キーワード：有機半導体,ブレードコート

要約(日本語)：Liquid crystalline organic semiconductors Ph-BTBT-10 and 8H₂Pc thin films were fabricated by high-speed blade-coating at 140 mm/s to fabricate organic thin film transistors (OTFTs) and organic photodetectors (OPDs), respectively. High TFT mobility of 4.9±0.32 cm²/Vs with small variation were achieved by fabricating Ph-BTBT-10 crystalline thin films utilizing the liquid crystal film as precursor. Also, 8H₂Pc suppressed the increase of grain size during high-speed film fabrication due to the weaker intermolecular interaction of the liquid crystalline materials than that of crystalline materials. Due to the ideal morphology, fabricated OPD achieved responsivity of 0.22 A/W, which is equivalent to the previously reported value for spin-coated films.

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