The use of chemical vapor etching in multicrystalline silicon solar cells M. Ben Rabha, M. F. Boujmil, M. Saadoun and B. Bessaïs Eur. Phys. J. Appl. Phys., 47 1 (2009) 10301 Published online: 07 May 2009 DOI: 10.1051/epjap/2009085