Fabrication of single phase barium stannate (BaSnO3) thin film for methane sensing

Abstract

Development of thin film sensor with high activity and selectivity especially for methane is important in order to secure the life of labourers working in coal fields/mines. Bariums Stannate (BaSnO3) based thin film sensor are developed by sol gel route for the methane sensing. The development of thin films were characterized by X-ray diffractions, HR-SEM, EDX, AFM and testing of sensing was carried out in the temperature range of 100°C to 200°C for 100 to 400 ppm of methane gas concentration. Highest activity of the BaSnO3 films was observed for 400 ppm concentration of methane at 200 oC. © 2019 Elsevier Ltd.