Device simulation of Nanopillar based CdS/CdTe solar cell

A Nanopillar based n-CdS/p-CdTe solar cell has been simulated using TCAD device simulator SILVACO. Both the electrodes have been realized on the same plane and at the backside of the device. Detailed study has shown that there is a significant improvement in the extracted parameters of interest for the proposed device in comparison with its equivalent planar p-n junction counterpart. Besides, effective carrier collection by the Nanopillar, has also resulted improvement in the parameters of interests such as maximum power generated, fill factor and conversion efficiency. The parameters of interests have also been improved with the increase of the height of the Nanopillar.