| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
E. 환경/센서 재료 분과 |
| 제목 |
WO3, CNT, gas sensor, NO2, nanocomposite |
| 초록 |
Thick film sensors of WO 3 /CNT nanocomposite were fabricated by mixing multi-wall carbon nanotubes (CNTs) and WO 3 particles. The effect of CNT concentration on NO 2 gas sensing properties were examined. The morphology, composition and structure of the composites were examined by scanning electron microscope, X-ray diffraction and Raman spectroscopy. The sensing response and the optimum operating temperature were strongly affected by the composition of the nanocomposite mixtures. Compared to pure WO 3 , the addition of CNT enhanced the sensing performance at lower operating temperatures. The highest NO 2 gas response was achieved with 0.5 wt% CNT at 150 o C. The improvement in response and lowered operating temperature with the composite sensors was explained by the formation of heterojunction between WO 3 and CNT. |
| 저자 |
Nguyen Manh Hung, 김도진
|
| 소속 |
Chungnam National Univ. |
| 키워드 |
Thick Film Sensors of WO 3 /CNT Nanocomposite to detect NO 2 Gas |
| E-Mail |
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