title: Simulation and analysis of prismatic bioinspired compound lenses for solar cells: II. Multifrequency analysis.
abstract: Multifrequency numerical simulations of the light-coupling efficiency of a prismatic bioinspired compound lens (BCL) of silicon atop a thick silicon substrate were carried out within the framework of geometrical optics. Comparison was made with untextured and groove-textured silicon substrates as well as with untextured silicon substrates with a double-layer anti-reflection (DLAR) coating. Taking into account the broadband nature and the sea-level spectral irradiance of the insolation flux, and averaging over all admissible directions and both linear polarization states of the incident light, we found that the light-coupling efficiency can be almost doubled with respect to the untextured silicon substrate and enhanced by about a third with respect to a DLAR-coated untextured silicon substrate, by adopting a DLAR-coated silicon BCL.
authors.affiliation: Department of Electrical and Information Engineering, University of Salerno, Fisciano, SA, Italy. fchiadini@unisa.it
authors.forename: Francesco
authors.initials: F
authors.lastname: Chiadini
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Fiumara
authors.forename: Antonio
authors.initials: A
authors.lastname: Scaglione
authors.forename: Akhlesh
authors.initials: A
authors.lastname: Lakhtakia
mesh_terms: D000818:Animals; D040761:Biomimetic Materials; D054910:Compound Eye, Arthropod / Q000502:physiology*; D003198:Computer Simulation; D017076:Computer-Aided Design; D004175:Diptera / Q000502:physiology*; D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007908:Lens, Crystalline / Q000502:physiology*; D007909:Lenses; D008954:Models, Biological; D012031:Refractometry / Q000295:instrumentation*; D012993:Solar Energy