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Relationships between Cell Parameters of Dye-Sensitized Solar Cells and Dye-Adsorption Parameters

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journal contribution
posted on 25.04.2012, 00:00 by Puhong Wen, Mei Xue, Yoshie Ishikawa, Hiroshi Itoh, Qi Feng
The performance of dye-sensitized solar cells (DSCs) is affected strongly by sensitizer-dye adsorption behavior on TiO2 nanocrystal electrode. This study reports quantitative relationships between DSC cell performance parameters and dye-adsorption parameters for the first time. We discovered a logarithmic relationship between short-circuit photocurrent density (Jsc) and dye-adsorption equilibrium constant on TiO2 surface, and a linear relationship between open-circuit potential (Voc) and dye-adsorption density on TiO2 surface for DSCs. These relationships provide a convenient method for forecasting the performance of TiO2 nanoparticles for DSCs from the dye-adsorption parameters, and also indicate future directions for the development of high-performance TiO2 nanoparticles for DSCs.