Multiple tunnel junctions based nanowire photodetector model for single charge detection Samir Chatbouri, A. Touati, M. Troudi, N. Sghaier and A. Kalboussi Eur. Phys. J. Appl. Phys., 63 1 (2013) 10101 Published online: 05 July 2013 DOI: 10.1051/epjap/2013120238