Gondoni, Paolo and Mazzolini, Piero and Russo, Valeria and Petrozza, Annamaria and Srivastava, Avanish K. and Bassi, Andrea Li and Casari, Carlo S. (2014) Enhancing light harvesting by hierarchical functionally graded transparent conducting Al-doped ZnO nano- and mesoarchitectures. Solar Energy Materials and Solar Cells, 128. 248-253 . ISSN 0927-0248