A network of SnO2 nanowires was fabricated on the electrodes and their NO2 gas sensing properties were examined. SnO2 nanowires were synthesized by using a simple thermal evaporation process with Sn metal powders at low temperatures of 600 ∼ 700 °C. The diameters of the nanowires ranged from 50 nm to 100 nm, which was determined by the processing temperature and the oxygen content. At a the NO2 concentration of 20 ppm, a sensitivity of 300, a response time of 100 s, and a recovery time of 200 s were observed.
|Number of pages||5|
|Journal||Journal of the Korean Physical Society|
|Publication status||Published - 2006 Sep|
- Chemical gas sensor
ASJC Scopus subject areas
- Physics and Astronomy(all)