In this work we are reporting the effect of doping of tin on the morphology and sensing response ZnO
nanorods. We adopted chemical route to synthesize nanorods of ZnO and then 2% of Sn by weight was added at the time of reaction. To understand the structure we subjected the synthesized materials to XRD and FESEM. The addition of dopant has altered the morphology of ZnO, moreover it has also enhanced the sensing response for ethanol appreciably.