Nanotechnology Enables Wireless Gas Sensing

作者：Thai Trang T^*; Yang Li; DeJean Gerald R; Tentzeris Manos M

来源：IEEE Microwave magazine, 2011, 12(4): 84-95.

DOI：10.1109/MMM.2011.940594

• Wireless communication
• Wireless sensor networks
• Gas detectors
• Sensors
• Radio frequency
• Resonant frequency

Different topologies of carbon nanotube (CNT)-based RF passive gas sensors have been presented, particularly focusing on wireless transducers, which can directly indicate gas concentration through the change of easy-to-monitor RF parameters. CNTs feature numerous unique properties that could potentially enable the next generation of gas sensors with sensitivities better by 1-2 orders of magnitude with respect to existing ones. Both SWNTs and MWNTs feature ballistic electron transport with no scattering over long distances, thus CNTs can carry high currents with negligible heating. In addition, CNTs can be easily deposited on conformal and flexible materials utilizing inkjet-printing and other low-cost printing technologies. They also enable the low-cost realization of wearable, real-time gas detection devices with ultralow-power consumption and ultrasensitive selectivity.

• 出版日期2011-6
• 单位Microsoft