A novel approach for evaluating the series resistance of solar cells

Abstract A new method is presented to evaluate the series resistance of a solar cell. The method not only takes into account the effects of light and temperature on the series resistance, but also takes the diode junction ideality factor as an output current dependent parameter such that the values of the resistance measured are more accurate compared with previous calculations in which the diode junction ideality factor is a constant parameter along the entire output I–V curve.