The Japan Society of Applied Physics

2022 International Conference on Solid State Devices and Materials

2022 International Conference on Solid State Devices and Materials

2022年9月26日 〜 2022年12月23日
幕張メッセ

14:45 〜 15:00

[D-6-05] An Extended-Gate-Type Organic Field-Effect Transistor Functionalized with a Dimercapto Thiadiazole Derivative for the Detection of Mercury(II) Ions at Picomolar Level

〇Shijun Shi1, Kohei Ohshiro1, Qi Zhou1, Hikaru Tanaka2, Akari Yamagami2, Kazutake Hagiya2, Tsuyoshi Minami1 (1. Inst. of Indus. Sci., Univ. of Tokyo (Japan), 2. TOYOBO Corp., Ltd. (Japan))

Presentation style: On-site (in-person)

https://doi.org/10.7567/SSDM.2022.D-6-05

Mercury(II) ions in environmental water (e.g., river) causes a significant risk to human health. Herein, we report an ultrasensitive detection of mercury(II) ions by an extended-gate-type organic field-effect transistor (EG-OFET). The EG-OFET functionalized with a dimercapto thiadiazole derivative-based self-assembled monolayer (SAM) realized the sensitive and selective detection of mercury(II) ions at pM levels in an aqueous solution. Moreover, a real-sample analysis was demonstrated for river water.