Picosecond Laser Microstructuring for Black Silicon Solar Cells

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Abstract:

Sulfur-doping and broad band absorptive black silicon materials were fabricated by picosecond laser irradiation. Two kinds of microstructures, laser induced periodic surface structure (LIPSS) and conical spikes were obtained by changing parameters of laser scanning. Black silicon solar cells with back surface field were explored. Influences of different rear side structures to devices were presented and conversion efficiency of 9% is available.

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Advanced Materials Research (Volumes 418-420)

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217-221

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December 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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