Optimized broad band and quasi-omnidirectional anti-reflection properties with moth-eye structures by low cost replica molding

摘要: Abstract Averaged over wavelength range from 500 to 1600 nm at normal incidence, the reflection losses of silicon wafer as master mold are reduced original 35% only 0.2% after integrating surface moth-eye structures, and glass slide suppresses 7.5% near 0.4% incorporating polymer-based moth eyes on double side by replica molding that enables transferring onto any substrate. An outstanding anti-reflective property out large incident angles is realized with average below 0.5% until 50°, 2.5% 60° 70°, which holds promise for solar cell application.