상세정보
학술지
Fabrication of HCHO Gas Sensor Based on MEMS Heater and Inkjet Printing
- 발행일
- 201201
- 출처
- Journal of the Korean Physical Society, v.60 no.2, pp.225-229
- ISSN
- 0374-4884
- 출판사
- 한국물리학회
- 협약과제
- 11MB2100, 스마트and그린 빌딩용 자가충전 지능형 센서노드 플랫폼 핵심기술 개발, 김종대
- 초록
- We have developed In 2O 3 particle ink that can be applied in inkjet printing on a microelectromechanical systems (MEMS) heater and have fabricated semiconductor-type gas sensor based on that heater. The formaldehyde (HCHO) sensor prepared by inkjet printing showed comparable or even higher sensitivity compared to that of the sensor prepared from conventional screen printing when increasing the number of printings was increased. By virtue of its non-contact printing nature, this In 2O 3 ink as a sensing material could be deposited on the MEMS heater without damage to the heater membrane. We found that the sensor prepared on the MEMS heater by using the inkjet deposition technique showed response/recovery times of 7s/17s with a sensitivity of 0. 63 at an 18 mW power and 60 ppb HCHO. © 2012 The Korean Physical Society.
- KSP 제안 키워드
- Deposition technique, Higher sensitivity, Micro-electro-mechanical system(MEMS), Non-contact, O 3, Semiconductor type, Sensing material, Sensor based, contact printing, gas sensors, inkjet printing