室温下有机金属钨-聚苯胺薄膜的气敏性能

2012 IEEE Colloquium on Humanities, Science and Engineering (CHUSER) Pub Date : 2012-12-01 DOI:10.1109/CHUSER.2012.6504403

I. S. Zaine, Z. M. Zabidi, A. N. Alias, M. H. Jumali

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引用次数: 0

摘要

采用溶胶-凝胶自旋镀膜技术在硅衬底上制备了钨金属有机溶胶和钨-金属有机-聚苯胺溶胶。XRD表征表明，WO3粉末在400℃下退火2小时后，形成WO3单斜晶结构。SEM显微结构研究表明，在钨金属有机溶胶中加入商品聚苯胺(PANI)粉末，使膜变得平坦光滑。钨类有机金属传感器对异丙醇蒸汽有响应，但响应随时间的延长而降低。在下次检测中再次使用该传感器表明，该传感器对乙醇蒸气无响应。在钨金属有机溶胶中加入聚苯胺，提高了传感器的传感性能。钨系有机金属-聚苯胺传感器具有良好的可逆性、可重复使用性和对异丙醇和乙醇蒸气的响应性。

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Gas sensing properties of tungsten organometallic-PANi thin film at room temperature

Tungsten organometallic sol and tungsten-organometallic-PANi sol were deposited onto silicon substrates by a sol-gel spin coating technique. XRD characterization showed that the WO3 monoclinic crystal structure was formed after WO3 powder was annealed at 400 °C for 2 hours. Microstructural studies by SEM indicate that addition of commercial polyaniline (PANI) powder into tungsten organometallic sol caused the film to be flat and smooth. Tungsten organometallic sensor was responsive towards isopropanol vapor but the response decrease with time. Reuse of this sensor for the next detection showed that the sensor was not responsive to ethanol vapor. The addition of PANi into tungsten organometallic sol improved the sensing properties of the sensor. Tungsten organometallic-PANi sensor exhibited good reversibility, reusability and was responsive towards isopropanol and ethanol vapors.

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2012 IEEE Colloquium on Humanities, Science and Engineering (CHUSER)

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