| 학회 | 한국공업화학회 |
| 학술대회 | 2007년 봄 (05/11 ~ 05/12, 계명대학교) |
| 권호 | 11권 1호 |
| 발표분야 | 환경에너지 |
| 제목 | Gas sensing characteristics of screen-printed SnO2/WO3 thick films as a VOCs gas sensor |
| 초록 | In this study, a highly sensitive WO3 based thick film VOCs sensor has been studied. The sensing characteristics such as sensitivity, response/recovery time were studied by using nanosized VOCs-based metal oxides(SnO2, TiO2, ZnO) doped with catalysts(Pt, Pd, Ru, In). The measured sensitivity to VOCs gas is defined as the ratio (Ra/Rg) of the resistance (Rair) of WO3 film in air to the resistance(Rgas) of WO3 film in a VOCs test gas . The sensitivities of the sensor were investigated by measuring toluene, styrene and xylene at the concentration range of 10-500ppm. It was found that the sensitivity and the selectivity of the films doped with 1wt% Pd and 5wt%SnO2 show the best performance. |
| 저자 | 전재목, 정순분, 최경진, 이창섭 |
| 소속 | 계명대 |
| 키워드 | gas sensor; WO3; VOCs |
