P1.8.12 Effect of Composition and Formation Conditions on Characteristics of Ammonia Sensor

The properties of nanostructured SiOx films doped with Dawson-type heteropolycompounds at room temperature in clean air and in air containing ammonia were examined. It was studied adsorption activity of the sensors and found that the films formed at the surface of electrodes have a highly developed surface with nano-size pores. It has been shown that heteropolyanion composition and cation type have a significant influence on a sensor behavior of doped films. The study shows that the conditions of the environment affect the sensors characteristics markedly, which can be improved by choosing of the right procedure of forming and processing.