TIN OXIDE FROM ORGANO-METALLIC COMPOUNDS: MATERIAL'S PROPERTIES AND SENSOR CHARACTERISTICS

This chapter summarizes Studies performed on tin dioxide materials, fabricated from different synthetic routes, for further use in semiconductor gas sensors. The synthesis of SnO2 was performed using a conventional precipitation technique starting from tin (IV) acetate. The material was compared with a commercial SnO2 nanopowder. Oil the basis of thermo XRD analysis followed by the calculation of average crystallite size, we estimated the thermal stability of the mentioned materials. FT-IR, Raman, SEM and laser spark element analyses were also used for material characterization. Thick film sensors, fabricated using synthesized and commercial SnO2 materials, were examined with regard to their responses to methane. Both undoped and doped synthesized SnO2 were found to exhibit the highest responses to methane compared with others materials and commercial tin oxide sensors.