In this paper the effect of porosity is investigated on the dye solar cell parameters such as electron current density ( ) and tri-iodide concentration ( ). The results of numerical simulations show that by decreasing the porosity, the electron current density is increased. This effect causes to improve the efficiency of the solar cell. Also we have obtained that by increasing the porosity the tri-iodide concentration within DSC will be decreased and increase , so the performance of the cell will be improved.

Keywords: Dye solar cell, Porosity, Electron current density

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