Dye sensitized solar cell (DSSC) simulation

I want to simulate the electrical behavior of a DSSC.

This kind of solar cell is made in a sandwich like structure.

First of all, there is a FTO glass like electrode. On this glass it is deposed a TiO2 layer, a dye layer is adsoberd on the TiO2, a liquid electrolyte is in contact with these two layers, and at the end a counter electrode close the system. The counter electrode is a platinized FTO glass.

I would like someone tell me how to start the model and how to register the electrical parameters (voltage and current).
What model do I have to use?

Thank you.