Detection layers based on composites of organocomplexes and nanoparticles for chemical sensors
The project deals with preparation of chemical gas sensors based on sensitive layers of
nanocomposite of organic substance (phthalocyanines, metallocenes) and metallic nanoparticles.
The sensitive layers are prepared by technology of organic molecular evaporation in ultra-high
vacuum. The metallic nanoparticles are prepared by means of magnetron sputtering or thermal evaporation. The formation of nanoparticles is stimulated by subsequent thermal treatment. The research is focused on study of gas-detection mechanisms by means of analysis of structural properties, electrotransport behavior and electronic band structure of active materials. The effect of structural defects and metallic nanoparticles is investigated. The deposited layers are characterized with respect to chemical composition, structure, electrotransport properties and sensitivity to
selected gases. Based on the performed research, set of sensors is prepared for evaluation of their
sensitivity, selectivity and long-term stability.
