Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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NH3 Gas Sensing Characteristics of Single-Walled Carbon Nanotubes and Heating Effect

단층 탄소나노튜브의 암모니아 가스에 대한 감응특성과 열처리 효과

  • Published : 2004.04.01
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Abstract

Carbon nanotubes(CNT) were synthesized by arc-discharge method. To fabricate CNT sensor, CNT powder was dispersed in $\alpha$-Terpinol($C_{10}$ $H_{17}$OH) solution. The CNT films were fabricated by screen printing on the interdigitated Pt/Pd alloy electrode. The microstructure of CNT film were observed by scanning electron microscopy (SEM). In order to investigate the gas sensing characteristics of the film, the CNT film was experimented to measure NH$_3$ response and recovery time. And this sensor shows better reproductibility and faster recovery time than another CNT sensors. We suggest the possibility to utilize a CNT as new sensing materials for environmental monitoring.

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