Performance Analysis of Impurity Photovoltaic Effect in Solar Cells

Abstract

Abstract-An investigation has been performed to study the Impurity Photovoltaic (IPV) effect in a double junction solar cell. Impurity has been introduced separately and simultaneously in the two sub-cells which have been found to increase the cell performance. Moreover, it is obtained that impurity incorporated in the sub-cell with the lower current has the dominant effect on improvement. Improvement in short circuit current, fill-factor and efficiency of the double junction cell have also been quantified to demonstrate the enhancement compared to the case of single junction cell. Thus, this study predicts an efficient approach of improving performance of multijunction cells.