Journal of the Korean Physical Society

Korean Physical Society (한국물리학회)
권호 표지

Synthesis of SnO2 Nanowires and Their Gas Sensing Characteristics

Hwang, In-Sung;Choi, Young-Jin;Park, Jae-Hwan;Park, Jae-Gwan;Kim, Ki-Won;Lee, Jong-Heun

  • Published : 20060000
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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.

Keywords

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