Resistive Humidity Sensing. Resistive responses of (GO/rGO)/TNC films of different degrees of reduction to changes in r.h. at ambient temperature were investigated. Hybrid films deposited on PI substrates equipped with 2 IDEs were exposed to DUV light through a quartz mask for different times. After DUV exposure of both film areas, the PI substrate was cut to obtain two separate PI-supported sensors to be placed in the test cell (PTFE, volume: 20 mL)