Comparative study of TiO2 nanoparticles applied to dye-sensitized solar cells Besma Yacoubi, Jamila Bennaceur, S. Ben Taieb and Rathowan Chtourou Eur. Phys. J. Appl. Phys., 65 2 (2014) 20101 Published online: 03 February 2014 DOI: 10.1051/epjap/2013120322