Photovoltaic Cells: Organic Photovoltaic Cells Based On Solvent-Annealed, Textured Titanyl Phthalocyanine/C60 Heterojunctions (Adv. Funct. Mater. 12/2009)



original image

D. Placencia et al. report on the creation of organic photovoltaic cells from textured titanyl phthalocyanine (TiOPc) heterojunctions. The foreground of this frontispiece shows the crystal structures of the two polymorphs of TiOPc used, along with FE-SEM images of TiOPc on an ITO electrode before (left), and after (right) phase transformation of the TiOPc film. The background shows AFM phase images of the two TiOPc polymorph films, showing the dewetting of the surface and the nanotexturing which occurs during the solvent annealing/phase transformation process.