Research on Antireflection Characteristic of Light Trapping Film and Microstructure on the Surface

Abstract

The technology of composite light trapping film with smooth surface crystalline silicon is presented as an effective measure to enhance the absorptivity of silicon solar cell based on macrostructure at the interface of film.Genetic algorithm,which can be applied for multi-objective optimization,is used to optimize the microstructure of light trapping film.The reflection of smooth surface crystalline silicon is minimized to under 8%,resulting in a remarkable enhancement of initial efficiency for silicon solar cell.