Generación de estados superficiales durante la formación electroforética catódica de películas de TiO2 sobre ito

Química Nova

Próspero Acevedo-peña²  Ignacio González²  Gerardo Vázquez¹  J. Manríquez¹ 

[1] ,Universidad Autónoma Metropolitana unidad Iztapalapa Departamento de QuímicaD.F. ,México

关键词: cathodic electrophoretic deposition;    surface states;    TiO2;   

DOI  :  10.1590/S0100-40422011000300005

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License