Inspired by the apposition compound eyes of some dipterans, we analyzed the eect of texturing the exposed face of a silicon solar cell by ray-tracing simulation. Bioinspired textures of two types were considered: hillock textures and pit textures. A multifrequency analysis|that took into account the broadband nature of solar radiation and its amplitude at the sea-level, as well as the wavelength dependence of the complex-valued refractive index of silicon|showed that both types of bioinspired textures are benecial. We found that the light-coupling eciency can be enhanced by as much as 20% and 24% with respect to that of a at surface when the exposed face of a silicon solar cell is decorated with the bioinspired hillock texture and the bioinspired pit texture, respectively.

Comparison of Bioinspired Hillock and Pit Textures for Silicon Solar Cells

CHIADINI, FRANCESCO;SCAGLIONE, Antonio;
2014

Abstract

Inspired by the apposition compound eyes of some dipterans, we analyzed the eect of texturing the exposed face of a silicon solar cell by ray-tracing simulation. Bioinspired textures of two types were considered: hillock textures and pit textures. A multifrequency analysis|that took into account the broadband nature of solar radiation and its amplitude at the sea-level, as well as the wavelength dependence of the complex-valued refractive index of silicon|showed that both types of bioinspired textures are benecial. We found that the light-coupling eciency can be enhanced by as much as 20% and 24% with respect to that of a at surface when the exposed face of a silicon solar cell is decorated with the bioinspired hillock texture and the bioinspired pit texture, respectively.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4293053
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