Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 198, Issue 1, Pages 52-59Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2008.02.015
Keywords
dye-sensitized solar cell; electrophoretic deposition; compression
Categories
Ask authors/readers for more resources
Cathodic electrophoretic deposition (EPD) of commercially available TiO2 nanocrystals (P-25 and P-90, Degussa) for the formation of nanoporous electrodes for dye-sensitized solar cells (DSSCs) is reported. Thick, uniform, adherent TiO2 films were obtained from alcoholic suspensions prepared in two steps: first, nanoparticles were treated in an alcoholic suspension with a small amount of acetylacetone: second, the obtained suspension was mixed with a EPD charging solution with small additives of iodine, acetone and water. A modified mechanical compression technique was employed to the electrophoretically deposited films to vary the porous structure and thickness of TiO2 layers. By applying non-polar volatile organic liquids to fill the pores of dry TiO2 films before compression, we obtained a substantial improvement in the quality of the pressed films. The fabrication of multilayer electrodes enabled us to obtain TiO2 films with a thickness up to 25 mu m and the photoelectric conversion efficiency up to 8.5% under 1 sun illumination. (c) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available