Photocurrent simulation in an n-p-n-p silicon multilayer solar cell A. Bouzidi, A. S. Bouazzi and B. Rezig Eur. Phys. J. Appl. Phys., 31 1 (2005) 11-16 Published online: 27 April 2005 DOI: 10.1051/epjap:2005036