Super-Antireflective Structure Films with Precisely Controlled Refractive Index Profile

Abstract

The fabrication of super-antireflective structure films is reported, which exhibit an unprecedented refractive index profile and eliminate reflections almost completely for any angle of incidence with extreme precision using a newly developed square voltage pulse anodization. The application of the films on polymer solar cells demonstrates that the efficiencies with the film increase to 12.08% at 70 degrees.