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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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ZnS nanowires were synthesized in order to investigate NO₂ gas sensing properties. They were grown on the sapphire substrate using ZnS powders. SEM (scanning electron microscopy) showed the diameter and length of the ZnS nanowires were approximately in the range of 50 - 100 nm and a few 10s μm, respectively. They were also found to be composed of Wurtzite- structured single crystals from TEM (transmission electron microscopy) analysis. NO₂ gas sensing performance of the ZnS nanowire was measured with electrical resistance changes caused by NO₂ gas with a concentration of 1-5ppm. The sensor was UV treated with an intensity of 1.2 mW/cm2 to facilitate charge carrier transfer. The responses of the ZnS nanowires to the NO₂ gas at room temperature, treated with UV of two different wavelengths of 365 nm and 254 nm, are measured to be 124.53 - 206.87 % and 233.97 - 554.83%, respectively. In the current work, the effect of UV treatment on the gas sensing performance of the ZnS nanowires was studied. And the underlying mechanism for the electrical resistance changes of the ZnS nanowires by NO₂ gas was also discussed.
목차
Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (30)
참고문헌 신청
1. [학술지(정기간행물)] - B. Wang / 2008 / / J. Phys. Chem 112 : 6643 ~
2. [학술지(정기간행물)] - A. Kolmakov / 2005 / / Nano Lett 5 : 667 ~
3. [학술지(정기간행물)] - T. J. Hsueh / 2007 / / Sens. Actuators B 126 : 473 ~
4. [학술지(정기간행물)] - Y. J. Choi / 2008 / / Nanotechnol 19 : 095508 ~
5. [학술지(정기간행물)] - A. Kolmakov / 2003 / / Adv. Mater 15 : 997 ~
2. [학술지(정기간행물)] - A. Kolmakov / 2005 / / Nano Lett 5 : 667 ~
3. [학술지(정기간행물)] - T. J. Hsueh / 2007 / / Sens. Actuators B 126 : 473 ~
4. [학술지(정기간행물)] - Y. J. Choi / 2008 / / Nanotechnol 19 : 095508 ~
5. [학술지(정기간행물)] - A. Kolmakov / 2003 / / Adv. Mater 15 : 997 ~
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UCI(KEPA) : I410-ECN-0101-2016-581-001003782