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Electrophoretic deposition and compression of titania nanoparticle films for dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
28656 44084 2008 8 PDF Available
Title
Electrophoretic deposition and compression of titania nanoparticle films for dye-sensitized solar cells
Abstract

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 μm and the photoelectric conversion efficiency up to 8.5% under 1 sun illumination.

Keywords
Dye-sensitized solar cell; Electrophoretic deposition; Compression
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Electrophoretic deposition and compression of titania nanoparticle films for dye-sensitized solar cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 198, Issue 1, 5 July 2008, Pages 52–59
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us