Preparation, Characterizations And CO Sensing Performance Of Chemically Sprayed Nanostructured SnO2 Thin Films

Thin films of nanostructured SnO2 were prepared using simple chemical spray pyrolysis technique. As prepared thin films were characterized using the XRD and FE-SEM technique. The average grain size was observed to be less than 48 nm. These films were observed to most sensitive (S = 180.81) to CO for 100 ppm at 300 degrees C. The sensor shows quick response (3 s) and recovery (8 s).