Fig. 4From: Enhanced Optical Absorption in Perovskite/Si Tandem Solar Cells with Nanoholes ArrayOptical characterization of tandem solar cells with nanoholes array. a Absorption spectra versus height at fixed P = 500 nm and η = 0.5. b The magnified view of the absorption spectra ranges from 800 to 1100 nm. c Current density versus height at fixed P = 500 nm and η = 0.5Back to article page