Organic-inorganic nanocomposites for gas sensing

Sensor elements based on composite films of poly-3, 4-ethylenedioxythiophene combined with nanocrystals of porous silicon and zinc oxide were created. Increasing of nanocomposite electrical resistance due to adsorption of ammonia and ethanol molecules was registered. To evaluate the sensor properties, adsorption sensitivity of obtained composite films was calculated and their dynamic characteristics were studied.