Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
79963 | Solar Energy Materials and Solar Cells | 2009 | 5 Pages |
Abstract
The performances of infrared-dye-sensitized solar cells fabricated using two novel cyanine dyes (light absorption edge: 900 nm) were investigated. The performance of the cell using NK6037 dye was superior to that using NK4432; hence, an intimate interaction between the dye and the TiO2 photoelectrode via the functional group is essential for efficient electron injection. The efficiency reached 1.9% by optimizing the light-confining effect of the TiO2 photoelectrode and TiO2 film thickness, and reached 2.3% by adjusting the concentration of deoxycholic acid (DCA) in the dye solution. The roles of the dye and DCA were clarified by photochemical and electrochemical characterization.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Takahiko Ono, Takeshi Yamaguchi, Hironori Arakawa,