단층 탄소나노튜브의 일산화질소 가스에 대한 감응특성과 열처리 효과

Abstract

Carbon nanotubes (CNT) were synthesized by arc-discharge method. To fabricate CNT sensor, CNT powder wasdispersed in a-Terpinol(C10H17OH) solution. The CNT films were fabricated by screen printing method on theinterdigitated Pt/Pd alloy electrode. The microstructure of CNT film was observed by scanning electron microscopy (SEM)and transmission electron microscopy (TEM). In order to investigate the gas sensing characteristics of the film, the CNTfilm was experimented to measure NO response and recovery time. The CNT sensor with a heater was compared to thatwithout a heater. And this sensor shows better reproductibility and faster recovery time than another CNT sensors. Wesuggest the possibility to utilize a CNT as new sensing materials for environmental monitoring.