Enhanced gas sensing correlated with structural and optical properties of Cs-loaded SnO2 nanofilms P. J. Elia Raine, P. Arun George, O. N. Balasundaram and T. Varghese Eur. Phys. J. Plus, 131 9 (2016) 324 Published online: 20 September 2016 DOI: 10.1140/epjp/i2016-16324-y