Development of supersensitive ISFET-pH electrode for oceanographic long-term observation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24656545
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Earth system and resources enginnering
• Research Institution: Kyushu University
• Principal Investigator: SHITASHIMA Kiminori 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (70371490)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ISFET-pH電極 / 海洋化学センサ / 現場連続計測 / 海底熱水活動 / 海洋酸性化 / CCS / ナチュラルアナログ

Outline of Final Research Achievements

I developed new supersensitive pH electrode for oceanographic continuous measurement. I investigated the structure of an ion-sensitive field-effect transistor (ISFET) as the pH electrode in order to avoid leak of current that affect stability of the pH electrode. A wafer of ISFET-pH electrode was fabricated at Kyushu Institute of Technology. The ISFET-pH electrode demonstrated excellent performance.

Free Research Field

海洋地球化学