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Dye‐Sensitized Solar Cells Based on TiO 2 Coatings with Dual Size‐Scale Porosity
Author(s) -
Qi Lai,
Sorge Judith D.,
Birnie III Dunbar P.
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.02970.x
Subject(s) - dye sensitized solar cell , electrolyte , materials science , porosity , quasi solid , chemical engineering , solvent , nanoparticle , nanotechnology , composite material , electrode , chemistry , organic chemistry , engineering
Dye‐sensitized solar cells (DSSC) with efficiencies greater than 4% were produced with templated “inverse opal” titania coatings. A novel one‐step method produces uniform and crack‐free coatings made using commercially available titania nanoparticles with high reproducibility and uniformity. In this research, a volatile solvent electrolyte was tested; however, it shows proof‐of‐concept that larger pore volumes can be created for increased penetration of more viscous electrolytes that can be utilized in high‐efficiency cells. This dual size‐scale porosity film is a promising structure for DSSC applications, especially for those solid‐state or quasi‐solid‐state cells that require polymer electrolytes.