オプティカルリン酸イオンセンサ Optical Phoshate-Ion Sensor Based on Electrochromism of Metal-Oxide Thin-Film Electrode

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Optical phosphate-ion sensors based on electrochromism of oxide thin-film electrodes were developed. Among the oxide thin-films tested, it was found that Co<sub>3</sub>O<sub>4</sub> and NiO -based electrodes prepared onto ITO glasses by a sol-gel method showed good sensing performance, i.e., the transmittance at 400-800nm of the electrodes changed reversibly depending on HPO<sub>4</sub><sup>2-</sup> concentration under applying anodic electrode potentials. The transmittance change of Co<sub>3</sub>O<sub>4</sub> based element at 620nm was almost linear to the logarithm of the HPO<sub>4</sub><sup>2-</sup> concentration between 1.0×10<sup>-6</sup> and 1.0×10<sup>-2</sup> M at+0.4 V vs. SCE. The 90% response time of the element, when the electrode potential was changed from +0.4 to 0 V vs. SCE at 1.0×10<sup>-2</sup> M, was about 50s at room temperature.

収録刊行物

  • 電気学会論文誌. E, センサ・マイクロマシン準部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A publication of Sensors and Micromachines Society  

    電気学会論文誌. E, センサ・マイクロマシン準部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A publication of Sensors and Micromachines Society 119(5), 285-289, 1999-05 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10004833966
  • NII書誌ID(NCID)
    AN1052634X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13418939
  • NDL 記事登録ID
    4716383
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-B380
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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