期刊
ELECTROANALYSIS
卷 25, 期 6, 页码 1439-1445出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201300015
关键词
Conducting polymers; Field-effect transistor; Sensors; Thin films
资金
- Thai Government Scholarship (Ministry of Science)
- Government of India
This study developed a facile technique for site-specific synthesis of nanometer-thick polyaniline (PANI) film for fabrication of field-effect transistor/chemiresistor sensors. The nanothin film had a thickness of 9-20nm and was of carpet-like morphology offering a highly accessible surface geometry that enhanced gas adsorption and promoted surface reaction/interaction. When applied for sensing of ammonia (NH3) and nitrogen dioxide (NO2), the performance of the nanothin film device was comparable to that of a 1-dimensional (1-D) nanostructure, with a great advantage in ease of processing. Sensing mechanism study indicated electrostatic gating as the dominating mode of sensing.
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