Passive ammonia sensor: RFID tag integrating carbon nanotubes

In this paper Single-Wall Carbon Nanotubes (CNT) are examined for the design of a passive RFID sensor. CNT film, the so called “buckypaper”, is produced and indirectly characterized from a dielectric and a sensititvity point of view. A CNT-based RFID tag prototype is then described as the featured maintenance free sensor and experimentally verified for its applicability and sensitivity towards NH3.

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