论文信息 - Formation of Crystalline-Oriented Titania Thin Films on ITO Glass Electrodes by EPD in a Strong Magnetic Field

Formation of Crystalline-Oriented Titania Thin Films on ITO Glass Electrodes by EPD in a Strong Magnetic Field

Crystal-oriented and crack-free thin TiO2 films with a good interfacial adhesion on indium-tin oxide (ITO) glass substrates for photoelectrodes were fabricated by the electrophoretic deposition (EPD) method in a 12 T strong magnetic field. A binder-free suspension for the EPD was prepared by dispersing TiO2 in the mixture of 2-propanol and 2,4-pentanedione. The electrophoretic mobility and the sedimentation rate were measured at various ratios of the mixed solution. The optimized state of the suspension exhibiting the highest surface charge potential and producing deposits with the highest green density was obtained at the 50:50 mixing ratio. The TiO2 films were characterized by XRD and SEM analyses. The photo-current measurement was also conducted to investigate the relation between the photo-anode characteristics of a dye-sensitized solar cell and the plane orientation of the TiO2 films

[1] Y. Sakka,et al. Control of crystalline texture in polycrystalline TiO2 (Anatase) by electrophoretic deposition in a strong magnetic field , 2006 .

[2] Y. Sakka,et al. Crystalline-oriented TiO2 fabricated by the electrophoretic deposition in a strong magnetic field , 2004 .

[3] U. Diebold,et al. Scanning Tunneling Microscopy Study of the Anatase (100) Surface , 2003 .

[4] T. Yamaki,et al. Photo-induced surface charge separation of highly oriented TiO2 anatase and rutile thin films , 2002 .

[5] Zuhong Lu,et al. Dye-sensitized anatase titanium dioxide nanocrystalline with (001) preferred orientation induced by Langmuir–Blodgett monolayer , 2002 .

[6] C. Ong,et al. In situ RHEED monitor of the growth of epitaxial anatase TiO2 thin films , 2001 .

[7] T. Chikyow,et al. Anatase TiO2 thin films grown on lattice-matched LaAlO3 substrate by laser molecular-beam epitaxy , 2001 .

[8] U. Diebold,et al. Scanning tunneling microscopy investigation of the TiO2 anatase (101) surface , 2000 .

[9] K. Yamashita,et al. Fabrication of green films of single- and multi-component ceramic composites by electrophoretic deposition technique , 1997 .

[10] Alfonso Franciosi,et al. Ultrahigh vacuum metalorganic chemical vapor deposition growth and in situ characterization of epitaxial TiO2 films , 1993 .