Enhanced Photovoltaic Performance of ultrathin Polycrystalline CdS/CdTe Solar Cell via Indium Antimonide Absorber Layer

Polycrystalline Cadmium Telluride (CdTe) solar cells offer a compelling combination of low-cost and high device performance. On the other hand, the thickness reduction of CdTe solar cells is highly attractive because of their limited availability and the rising price. Here, using calibrated and validated simulations with experimental data of fabricated CdS/CdTe solar cell, we propose and investigate a novel high-performance ultrathin polycrystalline cadmium sulfide/cadmium telluride (CdS/CdTe) solar cell. The key idea of the proposed structure is the use of an indium antimonide )InSb( absorber layer between cadmium telluride absorber layers, suggests high efficiency because of high photogeneration and low recombination rate. From the investigation, it was found that the conversion efficiency value of proposed ultrathin solar cell increased about 25% compared to that of the reference cell. Under global AM 1.5 conditions, the proposed structure showed the highest conversion efficiency of 22.22% (Jsc = 29.2 mA/cm2, FF = 0.83, Voc = 914 mV).

کلیدواژه ها:

Polycrystalline ، Cadmium sulfide ، Cadmium telluride ، Solar cell ، Conversion efficiency ، photogeneration ، InSb absorber layer