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|Title:||Design and Simulation of Novel Perovskite/Mg2Si Based Monolithic Tandem Solar Cell with 25.5% Conversion Efficiency|
|Publisher:||Institute of Electrical and Electronics Engineers Inc.|
|Abstract:||High thermalization losses associated with the single junction based solar cells demand the investigation of multilayer junction solar cell. Multilayer junction solar cell which comprises of top cell (high bandgap)/bottom cell (low bandgap) efficiently utilizes the solar spectrum. Perovskite/Si based tandem solar cells often require thick (>100 ?m) and high quality (large lifetime) Si wafer-based bottom subcell, which eventually increases overall module cost. In this work, relatively a much thinner layer of magnesium silicide (Mg 2 Si) of thickness 2?m is used to propose a novel perovskite/Mg 2 Si based tandem solar cell. Proposed device exhibits open circuit voltage (V OC ) = 1.67 V, short circuit current density (J SC ) = 19.9 mA. cm -2 , fill factor (FF) = 76 % and power conversion efficiency (PCE) of 25.5%. The results suggest the Mg 2 Si as an optimum choice with the band gap of 0.77 eV for the bottom cell of the tandem solar cell.|
|Appears in Collections:||Conferences|
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