Presentation Information
[10a-P03-3]ESR study on the processes of ascorbic acid sensing in organic electrochemical transistors with PEDOT:PSS channel
〇(D)WENHAO HE1, Jiaxi Wang1, Taiki Sakaguchi1, Yukihiro Shimoi1,2, Kazuhiro Marumoto1,2,3 (1.Dep. Mater. Sci., Univ. of Tsukuba, 2.OIQSST, Univ. of Tsukuba, 3.TREMS, Univ. of Tsukuba)
Keywords:
organic electrochemical transistor,ascorbic acid,electron spin resonance
Organic electrochemical transistor (OECT) structures using PEDOT:PSS as the channel material are being actively researched for use in biosensors. Among these, there have been reports of sensors for detecting ascorbic acid (AA; vitamin C), an important biological substance. However, there is insufficient understanding at the molecular level of the interaction between AA and PEDOT:PSS during the AA detection process. Therefore, in this study, we report on the effects of AA on PEDOT:PSS during device operation, as investigated using electron spin resonance (ESR) spectroscopy.