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2018 Fiscal Year Final Research Report

Semiconductor gas sensor by introducing double receptors for ppb detection of bio-marker gases

Research Project

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Project/Area Number 16H04219
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic industrial materials
Research InstitutionKyushu University

Principal Investigator

Shimanoe Kengo  九州大学, 総合理工学研究院, 教授 (10274531)

Co-Investigator(Kenkyū-buntansha) 西堀 麻衣子  九州大学, 総合理工学研究院, 准教授 (20462848)
渡邉 賢  九州大学, 総合理工学研究院, 准教授 (90552480)
末松 昂一  九州大学, 総合理工学研究院, 助教 (90637555)
Project Period (FY) 2016-04-01 – 2019-03-31
Keywordsガスセンサ / 超高感度 / レセプター / ppt / 金属酸化物 / 半導体 / バイオマーカー / 呼気
Outline of Final Research Achievements

In this study, I aimed to detect organic gases in ppb level particularly cancer biomarker in expiration by introducing the new concept of the double receptors into the materials design of the semiconductor gas sensor which I proposed so far. There is two main results in this study. At first, it was found that when the perovskite type oxide particles were mixed with sensor material of SnO2, the oxygen released from the perovskite type oxide by pulse heating enhanced sensor response. Secondly, after optimizing pulse heating conditions, receptor-loaded cluster particles could detect toluene in ppt level. This result updated the world's best sensitivity of the semiconductor gas sensor.

Free Research Field

機能材料学

Academic Significance and Societal Importance of the Research Achievements

本研究は、超高感度マイクロガスセンサの設計に関するものであり、増感作用のためのレセプター効果や素子の駆動方法に新たな概念を導入し、世界最高感度のガスセンサを構築したものである。これらの成果は、学術会議や化学雑誌に掲載されるのみならず、新聞にも掲載された。また、科学雑誌では、そのインパクトの大きさからモデル図が雑誌の表紙に採択された。

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Published: 2020-03-30  

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