First-principles calculations of SO2 sensing with Si nanowires Aleandro Antidormi, Mariagrazia Graziano, Gianluca Piccinini, Luca Boarino and Riccardo Rurali Eur. Phys. J. B, 89 12 (2016) 275 Published online: 14 December 2016 DOI: 10.1140/epjb/e2016-70575-6