ID | 34050 |
フルテキストURL | |
著者 |
Yamaguchi, Tomiharu
Okayama University
Takisawa, Masanori
Okayama University
Kiwa, Toshihiko
Department of Electrical and Electronic Engineering, Okayama University
ORCID
Kaken ID
publons
researchmap
Yamada, Hironobu
Department of Electrical and Electronic Engineering, Okayama University
Tsukada, Keiji
Department of Electrical and Electronic Engineering, Okayama University
Kaken ID
researchmap
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抄録 | Two different types of hydrogen response signals (DC and AC) of a proton-pumping gate FET with triple layer gate structure (Pd/proton conducting polymer/Pt) were obtained. The proton-pumping gate FET showed good selectivity against other gases (CH4, C2H6, NH3, and O2). For practical use, the hydrogen response characteristics of the proton-pumping gate FET were investigated in air (a gaseous mixture of oxygen and nitrogen). The proton-pumping gate FET showed different hydrogen response characteristics in nitrogen as well as in air, despite the lack of oxygen interference independently. To clarify the response mechanism of the proton-pumping gate FET, a hydrogen response measurement was performed, using a gas flow system and electrochemical impedance spectroscopy. Consequently, the difference in response between nitrogen and air was found to be due to the hydrogen dissociation reaction and the interference with the proton transfer caused by the adsorbed oxygen on the upper Pd gate electrode |
キーワード | Field effect transistor (FET)
Hydrogen sensor
Proton-pumping gate
Oxygen
Electrochemical impedance spectroscopy (EIS)
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備考 | Published with permission from the copyright holder.
This is a author's copy,as published in Sensors and Actuators B-Chemical, 2008, volume 133, issue 2, pp.538-542. Publisher URL: http://dx.doi.org/10.1016/j.snb.2008.03.021 Direct access to Thomson Web of Science record Copyright © 2008 Elsevier B. V. All rights reserved. |
発行日 | 2008-08-12
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出版物タイトル |
Sensors and Actuators B-Chemical
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巻 | 133巻
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号 | 2号
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開始ページ | 538
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終了ページ | 542
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資料タイプ |
学術雑誌論文
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言語 |
英語
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査読 |
有り
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DOI | |
Web of Science KeyUT | |
Submission Path | electrical_engineering/119
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