|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Recent Developments in Biological, Structural and Functional Thin Films & Coatings
||H-11: Effect of Interaction of CO Gas Molecules on Schottky Barrier Modulation of Pt-SnO2 Nanostructure Device
||Avneet Singh, Monika Tomar, Vinay Gupta
|On-Site Speaker (Planned)
Worldwide, efforts are being made towards detection of CO gas because it combines with haemoglobin present in human blood to form carboxyhaemoglobin. This affects blood’s ability to carry oxygen destroying the body’s cells and tissues. Tin oxide (SnO2) thin film and nanostructures are reported to be the potential materials for detection of harmful and toxic gases. In the present work, SnO2 nanostructured thin film has been grown using glancing angle assisted sputtering technique under optimized growth conditions. Pt microdiscs have been integrated as a catalyst over the surface of SnO2 nanostructures. SnO2-Pt heterostructures have been exploited for the detection of 500 ppm of CO gas. Enhanced gas sensing response (≈ 324) has been obtained at a relatively low operating temperature of 110°C. The improved sensing response has been understood in the light of increased surface area of nanostructures and modulation of Schottky barrier at the interface of Pt and SnO2.
||Planned: Supplemental Proceedings volume