| Autor: |
Onodera, Mari, Ogiya, Kei, Suzuki, Ai, Tsuboi, Hideyuki, Hatakeyama, Nozomu, Endou, Akira, Takaba, Hiromitsu, Kubo, Momoji, Miyamoto, Akira |
| Zdroj: |
Japanese Journal of Applied Physics; April 2010, Vol. 49 Issue: 4 p04DP10-04DP16, 7p |
| Abstrakt: |
Our newly developed our original multi-scale simulator was applied to dye-sensitized solar cells (DSSC) to investigate the effect of the complex porous structure of a TiO2electrode on cell performance. We simulated the current--voltage ($I$--$V$) characteristics for various models of porous structures of DSSCs including cis-di(thiocyanato)-bis(2,2$'$-bipyridyl-4,4$'$-dicarboxylic acid)-ruthenium(II) (N3 dye). The short-circuit current density increased with decreasing porosity, overlap ratio, and particle diameter. A DSSC system including TA--St--CA (C30H22N2O2) as a sensitizer was also investigated for comparison with the system with N3 dye. The dependence of the amount of dye adsorption on the $I$--$V$ characteristics was evaluated. A linear relation between the short-circuit current density and the amount of dye adsorption was found. The obtained results indicate that our developed multi-scale simulator is a powerful tool for obtaining insights into the effect of properties in DSSCs and for optimizing the DSSC structure. |
| Databáze: |
Supplemental Index |
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