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ファイル | 記述 | サイズ | フォーマット | |
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5.0083209.pdf | Version of Record (VoR) | 1.77 MB | Adobe PDF | 見る/開く |
タイトル: | Electrochemical control and protonation of the strontium iron oxide SrFeOy by using proton-conducting electrolyte |
著者: | Isoda, Yosuke https://orcid.org/0000-0003-4445-9908 (unconfirmed) Kan, Daisuke https://orcid.org/0000-0002-7505-0059 (unconfirmed) Ogura, Yumie Majima, Takuya https://orcid.org/0000-0003-2804-1915 (unconfirmed) Tsuchiya, Takashi Shimakawa, Yuichi https://orcid.org/0000-0003-1019-2512 (unconfirmed) |
著者名の別形: | 磯田, 洋介 菅, 大介 小倉, 弓枝 間嶋, 拓也 土屋, 敬志 島川, 祐一 |
発行日: | 28-Feb-2022 |
出版者: | AIP Publishing |
誌名: | Applied Physics Letters |
巻: | 120 |
号: | 9 |
論文番号: | 091601 |
抄録: | To electrochemically control structural and transport properties of oxygen-deficient perovskite SrFeOy (2.5 ≦ y ≦ 3) (SFO) epitaxial films, we employed electric-field-effect transistor structures in which the proton-conducting solid electrolyte Nafion is used as a gate insulator. When a positive gate voltage (VGS) is applied and protons are injected toward the film channel layer, the SFO films are electrochemically reduced, leading to increases in the channel resistance. On the other hand, when a negative VGS is applied and protons are removed, the SFO films are oxidized, and as a result, the channel resistances decrease. In addition, we found that the electrochemically reduced SFO films accommodate protons, forming the proton-containing oxide HxSrFeO₂.₅ whose proton concentration is determined by elastic recoil detection analysis to be x ∼ 0.11. Our results indicate the usefulness of the proton-conducting solid electrolyte for electrochemically controlling transition metal oxides and for exploring proton-containing oxides. |
記述: | Archived file replaced from Accepted Manuscript to Version of Record. (2023-03-02) |
著作権等: | © 2022 Author(s). Published under an exclusive license by AIP Publishing. The full-text file will be made open to the public on 01 March 2023 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. |
URI: | http://hdl.handle.net/2433/269148 |
DOI(出版社版): | 10.1063/5.0083209 |
出現コレクション: | 学術雑誌掲載論文等 |
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