Abstract
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.
Original language | English |
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Pages (from-to) | 1229-1233 |
Number of pages | 5 |
Journal | Journal of the Korean Physical Society |
Volume | 49 |
Issue number | 3 |
Publication status | Published - 2006 Sept |
Keywords
- Chemical gas sensor
- Nanostructures
- SnO
ASJC Scopus subject areas
- General Physics and Astronomy