The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5, 2023 - Oct 31, 2023
Nagoya Congress Center

10:45 AM - 11:00 AM

[D-6-01] Low voltage operation of organic thin-film transistor with atmospheric coating of high-k polymer dielectric

○Kazunari Kuribara1, Atsushi Takei1, Takashi Sato2, Manabu Yoshida1 (1. the National Inst. of Advanced Indus. Sci. and Tech. (Japan), 2. Kyoto University (Japan))

https://doi.org/10.7567/SSDM.2023.D-6-01

We have investigated solution process of high-k polymer dielectric for low voltage operation of organic transistors. We developed drop-cast technique for thin high-k polymer without any vacuum process. Our organic thin-film transistors (TFTs) with the high-k polymer can operate within 5 V. In addition, we improved on/off ratio and on-current of an organic TFT by surface treatment with self-assembled monolayer (SAM). We used triptycene derivative with alkyl-chains as SAM, and on/off ratio was improved by about 104.