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

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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
Volume49
Issue number4 PART 2
DOIs
Publication statusPublished - 2010 Apr 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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