Abstract
We present in this research study an investigation towards the limitation of absorption reduction through Si solar cells with the variation of the angle of incidence. Our study is essentially based on the design of an anti-reflecting coating from a single period of one-dimensional quadrant photonic crystals (PCs) with concave and convex curvatures. Moreover, the effect of the one-dimensional PCs as a back mirror on the absorption of the cell was investigated. The numerical findings show that the solar cell absorption is significantly affected by the change in the angle of incidence. For concave an anti-reflecting coating, as the radius of curvature decreases to 50 nm, the solar cell absorption investigates significant enhancements with the angle of incidence. Considering planar and concave geometries is more preferred than the convex one whatever the radius of curvature of the constituent layers. The presence of an anti-reflecting coating with a small value of the radius of curvature is the most compatible design for silicon solar cells for capturing most of the incident photons on the cell and improving the cell absorption as well.