UV light activation of TiO2-doped SnO2 thick film for sensing ethanol at room temperature

Wen Zeng, Tianmo Liu, Zhongchang Wang

研究成果: Article査読

27 被引用数 (Scopus)

抄録

TiO2doped SnO2 nanopowder is synthesized via a sol-gel method and characterized by atomic force microscopy and X-ray diffraction. Using this nanopowder, we have fabricated a novel semiconductor gas sensor that is sensitive to UV light illumination. We find that gas-sensing properties of TiO2 -doped SnO2 sensor can be enhanced significantly under the exposure of UV light. The sensor exhibits a high sensitivity of 25 and rapid response-recovery times of 8 s and 24 s, respectively, under an ethanol gas of up to 100ppm at room temperature (323K). This suggests the possibility of development of a gas sensor tor detecting ethanol at room temperature.

本文言語English
ページ(範囲)243-245
ページ数3
ジャーナルMaterials Transactions
51
2
DOI
出版ステータスPublished - 2010 2
外部発表はい

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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