Optical Phosphate-Ion Sensor Based on Electrochromism of Metal-Oxide Thin-Film Electrode
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- Shimizu Youichi
- Kyushu Institute of Technology
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- Furuta Yusuke
- Kyushu Institute of Technology
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- Yamashita Tohru
- Kyushu Institute of Technology
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説明
Optical phosphate-ion sensors based on electrochromism of oxide thin-film electrodes were developed. Among the oxide thin-films tested, it was found that Co3O4 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 HPO42- concentration under applying anodic electrode potentials. The transmittance change of Co3O4 based element at 620nm was almost linear to the logarithm of the HPO42- concentration between 1.0×10-6 and 1.0×10-2 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 1.0×10-2 M, was about 50s at room temperature.
収録刊行物
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- 電気学会論文誌E(センサ・マイクロマシン部門誌)
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電気学会論文誌E(センサ・マイクロマシン部門誌) 119 (5), 285-289, 1999
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204462001408
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- NII論文ID
- 10004833966
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- NII書誌ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL書誌ID
- 4716383
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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