pH Measurement at Elevated Temperature with Vessel Gate and Oxygen-Terminated Diamond Solution Gate Field Effect Transistors

Shuto Kawaguchi*, Reona Nomoto, Hirotaka Sato, Teruaki Takarada, Yu Hao Chang, Hiroshi Kawarada

*この研究の対応する著者

研究成果: Article査読

抄録

Diamond has many appealing properties, including biocompatibility, ease of surface modification, and chemical–physical stability. In this study, the temperature dependence of the pH-sensitivity of a oxygen-terminated boron-doped diamond solution gate FET (C-O BDD SGFET) is reported. The C-O BDD SGFET operated in an electrolyte solution at 95 C. At 80 C, the pH sensitivity of C-O BDD SGFET dropped to 4.27 mV/pH. As a result, we succeeded in developing a highly sensitive pH sensing system at −54.6 mV/pH at 80 C by combining it with a highly pH sensitive stainless-steel vessel.

本文言語English
論文番号1807
ジャーナルSensors
22
5
DOI
出版ステータスPublished - 2022 3月 1

ASJC Scopus subject areas

  • 分析化学
  • 情報システム
  • 原子分子物理学および光学
  • 生化学
  • 器械工学
  • 電子工学および電気工学

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