Resistive humidity sensors based on proton-conducting organic–inorganic silicophosphates doped by polyionenes

Silicophosphate organic–inorganic nanocomposites synthesized by sol–gel method were studied. Fractal characteristics were investigated by small-angle X-ray scattering and transmission electronic microscopy. A correlation between proton conductivity, composition and structure of system, as well as synthesis conditions is revealed. The dependence of nanocomposite conductivity on alternating current and relative media humidity from 23.5 to 96.5 % was stated, that is evidence of their availability as active media for humidity sensors.