| 학회 |
한국재료학회 |
| 학술대회 |
2009년 가을 (11/05 ~ 11/06, 포항공과대학교) |
| 권호 |
15권 2호 |
| 발표분야 |
A. Information Processing and Sensing(정보소재 및 센서) |
| 제목 |
Characterization of Al doped ZnO-CNT composite-based gas sensor for NO and CO sensing |
| 초록 |
Al doped ZnO-carbon nanotube (ZnO:Al-CNT) composites fabricated by arc-discharge method of single-walled CNTs coationg ZnO:Al using RF Magnetron sputtering system. Porous oxide nanowire structure was confirmed by SEM, polycrystalline ZnO:Al coated a grain size 30nm on CNT. Gas sensing measurements clearly indicated a remarkable enhancement of the sensitivity of ZnO-CNT composites for NO and CO gas compared to that of ZnO films while maintaining the strong sensing stablility of the composites, properties the CNT-based sensing materials do not have. The enhanced gas sensing properties of the ZnO-CNT composites are attributed to an increase in the surface adsorption area of the ZnO layer via the coating by CNTs of a high surfacd-to-volume ratio structure. These results suggest that the ZnO-CNT composites is a promising template for novel solid-state semiconducting gas sensors. |
| 저자 |
안은성, 정훈철, 웬래훙, 김효진, 김도진
|
| 소속 |
충남대 |
| 키워드 |
gas sensor; CNT; NO; CO
|
| E-Mail |
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