Optical and Electrical Modeling and Characterization of Dye-Sensitized Solar Cells

Optical and electrical modeling of dye-sensitized solar cells (DSSCs) is presented. The optical model is based on one-dimensional semi-coherent optical simulator SunShine in which the nanoporous active layer is successfully modeled as an effective medium layer with effective scattering of light at its front and back surface interface using effective roughness. The electrical model is based on a pseudo-homogeneous active layer using diffusion transport equations for free electron and ions transport. In both models, the input parameters are extracted from the measured performance of the used test devices and the main optical and electrical losses are quantitatively identified for the two ionic-liquid-based DSSC structures having a 7 or 14 mu m thick active layer.