상세정보
학술지
Highly Sensitive NO2 Sensor Array based on Undecorated Single-walled Carbon Nanotube Monolayer Junctions
- 발행일
- 200809
- 출처
- Applied Physics Letters, v.93 no.11, pp.1-3
- ISSN
- 0003-6951
- 출판사
- American Institute of Physics (AIP)
- 협약과제
- 08MB1800, 유비쿼터스 단말용 부품 모듈, 김종대
- 초록
- Using the surface-programmed assembly technique, we have fabricated a uniform array of NO2 sensors based on undecorated single-walled carbon nanotube (SWNT) monolayer junctions. The sensitivity of the SWNT monolayer network-based sensors to NO2 gas was investigated at room temperature. We have found that the response of the gas sensors is inversely proportional to the initial conductance of the SWNT network. This behavior is different from conventional gas sensors based on uniform films, and it may be critical for the calibration of sensors in practical applications. An analytical model based on standard percolation theory is proposed to explain this behavior. © 2008 American Institute of Physics.
- KSP 제안 키워드
- Analytical model, Assembly technique, Carbon nano-tube(CNT), Highly sensitive, NO2 Sensor, Percolation Theory, Room-temperature, SWNT network, Sensor array, Single-Walled Carbon Nanotubes(SWCNTs), Uniform Array