Comparative study of TiO2 nanoparticles applied to dye-sensitized solar cellsBesma Yacoubi, Jamila Bennaceur, S. Ben Taieb and Rathowan ChtourouEur. Phys. J. Appl. Phys., 65 2 (2014) 20101DOI: https://doi.org/10.1051/epjap/2013120322