Generación de estados superficiales durante la formación electroforética catódica de películas de TiO2 sobre ito
AUTOR(ES)
Acevedo-Peña, Próspero, González, Ignacio, Vázquez, Gerardo, Manríquez, J.
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2011
RESUMO
In the present work TiO2 films were formed over Indium Tin Oxide (ITO) employing cathodic electrophoretic deposition (Cathodic-EPD) and Dr. Blade Technique. The films were characterized by electrochemical techniques in order to compare their electronic properties; as well as, their photoelectrochemical behavior. The electrochemical performance showed by the films, allowed to relate the modification occurring during the Cathodic-EPD, with the partial reduction of TiO2 nanoparticles, generating Ti3+ defects. These trapping states are modifying the electronic properties of the film, and diminishing the transport of the photoelectrogenerated electrons toward ITO.
