A compact J-V model for solar cell to simplify parameter calculation

For practical solar cells, the J-V (Current-Voltage) equation is quiet implicit to calculate the fill factor and maximum power point through enormous iterative calculations. Here, a new compact model is proposed that is pertinent with different solar cells. Only three model parameters are used to analyse the effectiveness of the model. Compared to other complex implicit models, it does not require iterative calculations for parameter extraction. The effects like space charge leakage current, trapping, tunneling, etc., are reflected in the first term of the model and the second represents the degradation in current due to shunt resistance. It satisfies wide varieties of solar cells with remarkable accuracy as well as parameters are extracted using four points on J-V characteristics only. The model is well compared with experimental characteristics taken from published literatures. (C) 2015 AIP Publishing LLC.