Abstract
In this study, Gallium Arsenide (GaAs) and Silicon (Si) nanostructure based solar cells are investigated for efficiency enhancement. The optical absorption capability of triangular, hemispherical, and truncated nanocone geometries used as anti-reflection coatings are analyzed using COMSOL Multiphysics based on Finite Element Method calculations. The optical effects of different nanostructures with constant period of 400 nm on the top of the substrate are studied. Truncated nanocone structures can achieve optical absorption improvements as compared to the other two nanostructures. Furthermore, (GaAs)-based solar cell nanostructures exhibit higher optical absorption as compared to Si-based nanostructures.
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