| 학회 |
한국재료학회 |
| 학술대회 |
2009년 가을 (11/05 ~ 11/06, 포항공과대학교) |
| 권호 |
15권 2호 |
| 발표분야 |
A. Information Processing and Sensing(정보소재 및 센서) |
| 제목 |
NO, CO Gas Sensing Characteristics of Cobalt doped ZnO-Carbon Nanotube Composites |
| 초록 |
Cobalt doped ZnO-Carbon nanotube composites (Co doped ZnO-CNT) were synthesized through carbon nanotube of Co doped ZnO using pulsed laser deposition. Their Co doped ZnO-CNT composite structures were confirmed by SEM, the morphology and crystallinity of Co doped ZnO-CNT composites showed that CNTs were uniformly coated with Co doped ZnO with a grain size as small as 10nm. Gas sensing measurements clearly indicated a remarkable enhancement of the sensitivity of Co doped ZnO-CNT composites for NO, CO gas compared to that of ZnO-CNT composites. Cobalt were caused increasing electron in gas sensor material and increasing electrons were improved gas sensing sensitivity because they helped a reponse between gas detection material and NO, CO gas. The enhanced electron concentration were decreased surface resistance. These result suggest that the Co doped ZnO-CNT composite is promising solid-state semiconducting gas sensor. |
| 저자 |
정훈철, 안은성, 웬래훙, 이진우, 오동훈, 김효진, 김도진
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| 소속 |
충남대 |
| 키워드 |
Co doped ZnO gas sensor; carbon nanotube; Co doped ZnO
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| E-Mail |
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