Development and Analysis on Micro-Electrical Photovoltaic Model of Dye Sensitized Solar Cell for Optimized Performance

The dynamic system of an equivalent dye sensitized solar cell electrical model is implemented to analyze the current, voltage and power characteristics. The parameters governing the working of the dye sensitized solar cell are determined for obtaining optimum efficiency. The complex process at different interfaces between the electrode, dye and electrolyte is examined using electrochemical impedance spectroscopy. The open-circuit voltage drops with the rise in cell temperature, as there is rapid growth in the reverse saturation current. The open-circuit voltage rises as the insolation level increases even though the saturation current of the recombination diode is independent of the amount of illumination. The current–voltage and electrochemical impedance spectroscopy of the proposed electrical model matches to that of experimental curve proving that the developed electrical model can be employed as a useful way for assessing the electrical properties of the dye sensitized solar cells. A generalized dye sensitized solar cell model which can be a representative of all the dye sensitized solar cell, module, and array is developed with MATLAB/Simulink. This makes it simple to simulate, examine and optimize the dynamics of a dye sensitized solar cell.