6.2.3 Flexible Gas Sensor Array with an Embedded Heater Based in Metal Decorated Carbon Nanofibres

Abs tract Carbon nanofibres (GANFG) decorated with metal nanoparticles were deposited over Kapton, a polymide flexible substrate, onto which an array of four interdigitated electrodes in one side and a common heater in the backside were printed using inkjet printing technique. The control over metal type and the decoration percentage have given us the possibility to improve the sensor sensitivity and also enhance the selectivity by taking advantages from the difference interaction behaviors of tested target gas molecules with different hybrid materials at room temperature.