Modeling of dye-sensitized solar cells based on TiO2 electrode structure model

Mari Onodera, Kei Ogiya, Ai Suzuki, Hideyuki Tsuboi, Nozomu Hatakeyama, Akira Endou, Hiromitsu Takaba, Momoji Kubo, Akira Miyamoto

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18 Citations (Scopus)


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 TiO2 electrode on cell performance. We simulated the current-voltage (/-V) characteristics for various models of porous structures of DSSCs including c/s-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 (C30H22N2O 2) as a sensitizer was also investigated for comparison with the system with N3 dye. The dependence of the amount of dye adsorption on the /-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.

Original languageEnglish
Article number04DP10
JournalJapanese Journal of Applied Physics
Issue number4 PART 2
Publication statusPublished - 2010 Apr


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