Simulation of High-Efficiency Perovskite-Based Tandem Solar Cells

The single-junction solar cells suffer from transmission and thermalization loss. Tandem solar cells are a promising development of solar cells, as they can solve the main limitation of which the single-junction solar cells suffer. Tandem solar cells consist of two or more junctions with different energy gaps that absorb a broader spectrum and show higher efficiency. The simulation of MAPbI
3-x
Cl
x
/Si and MAPbI
3-x
Cl
x
/CIGS have been presented. An optimized perovskite MAPbI3-xClx top subcell is used, which enhanced the overall performance of the proposed tandem cells. The efficiency of the MAPbI3-xClx/Si tandem cell approaches 30.18%. An increase in the efficiency of 33.38% is reported for replacing the bottom subcell by CIGS instead of silicon, with the same doping level. SCAPS-1D simulation tool was used to test the performance of the designed tandem cells. The comparison of the proposed tandem cells to the recently published work shows a promising performance and higher efficiencies.