Preparation of macroporous Eu-doped oxide thick films and their application to gas sensor materials (特集 VOCガスのセンシング) Preparation of Macroporous Eu-Doped Oxide Thick Films and Their Application to Gas Sensor Materials

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Macroporous (mp-)SnO<sub>2</sub> thick films doped with 5 mol% Eu and 0∼10 mol% Mg (<i>L</i>mp-SnO<sub>2</sub>(<i>m</i>Mg):Eu, <i>L</i>: the size of PMMA microsphere used: 400 or 800 (nm), <i>m</i>: Mg content) were fabricated by a modified sol-gel method that employs PMMA microspheres as a template and constituent metal chlorides as an oxide source. The photoluminescence (PL) intensity due to Eu<sup>3+</sup> ions increased with increasing the Mg content in the thick films. These films were subjected to the PL response measurement to acetone, and their PL intensities decreased clearly upon exposure to acetone balanced with air. Among all the films tested, <i>L</i>mp-SnO<sub>2</sub>(<i>1</i>Mg):Eu showed the highest ratio (I<sub>0</sub>/I) of PL intensity in air (I<sub>0</sub>) to that (I) in acetone, irrespective of the size of macropores, while the signal/noise (S/N) ratio was low. On the other hand, ΔI (= I<sub>0</sub> - I) of <i>L</i>mp-SnO<sub>2</sub>(<i>m</i>Mg):Eu was the highest at <i>m</i> = 10 with a high S/N ratio.

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 128(4), 137-140, 2008-04-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021135122
  • NII書誌ID(NCID)
    AN1052634X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13418939
  • NDL 記事登録ID
    9452161
  • 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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