Incorporation of Al-(hydr)oxide species onto the surface of TiO2 nanoparticles: Improving the open-circuit voltage in dye-sensitized solar cells - Aguilar, Teresa; Navas, Javier; Fernandez-Lorenzo, Concha; Alcantara, Rodrigo; Jesus Gallardo, Juan; De los Santos, Desiree M.; Martin-Calleja, Joaquin (Thin Solid Films, 2015)