| 학회 |
한국재료학회 |
| 학술대회 |
2011년 봄 (05/26 ~ 05/27, 제주 휘닉스 아일랜드) |
| 권호 |
17권 1호 |
| 발표분야 |
A. Information and Sensor Materials(정보소재 및 센서) |
| 제목 |
Fabrication and ammonia gas sensing properties of chemiresistor sensor based on porous tungsten oxide wire-like nanostructure |
| 초록 |
The tungsten oxide wire-like nanostructure is fabricated by deposition and thermal oxidation of tungsten metal on porous single wall carbon nanotubes (SWNTs). The morphology and crystalline quality of materials are investigated by SEM, TEM, XRD and Raman analysis. The results prove that WO3 wire-like nanostructure fabricated on SWNTs show highly porous structures. Exposure of the sensors to NH3 gas in the temperature range of 150–300oC resulted in the highest sensitivity at 250oC with quite rapid response and recovery time. Response time as a function of test concentrations and NH3 gas sensing mechanism is reported and discussed. |
| 저자 |
Nguyen Minh Vuong, Dojin Kim, Hoang Nhat Hieu
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| 소속 |
충남대 |
| 키워드 |
Tungsten oxide; Nanowire; Single wall carbon nanotube; Sensors; Porosity
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| E-Mail |
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