R. Anchisini et al., POLYPHOSPHAZENE MEMBRANE AS A VERY SENSITIVE RESISTIVE AND CAPACITIVEHUMIDITY SENSOR, Sensors and actuators. B, Chemical, 35(1-3), 1996, pp. 99-102
Polydimethylphosphazene (PDMP) has been tested for the first time to f
abricate a water resistive humidity sensor. The device consists of a P
DMP free-standing membrane coated on both sides with gold electrodes f
orming a parallel capacitor. A change in electrical capacitance and re
sistance of about three orders of magnitude was observed with increasi
ng relative humidity (RH) from 0% to 100%. The results show that polyp
hosphazenes are promising materials for resistive and capacitive senso
rs in the complete range of RH.