Design And Analysis Of Broadband Antireflective Coating For Monolithic Perovskite/Silicon Tandem Solar Cell

Reducing the surface optical loss and broadening the spectral response range can improve the power conversion efficiency (PCE) of the tandem solar cell (TSC). In this study, SiO2/MgF2/SiO2/MgF2 four antireflective coatings (ARCs) on top of perovskite/silicon TSC were designed, and the influence of each layer on the TSC performance was simulated and analyzed. The results indicate that the four ARCs enhanced light absorption over the 380- to 1200-nm wavelength range, and increased the PCE of the TSC from 20.79% to 24.16%, a 16.21% rate of increase. For cost savings, the four ARCs were re-optimized; the PCE of the TSC was improved to 23.6%. (C) 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)