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Proceedings Paper

The photovoltaic potential of femtosecond-laser textured amorphous silicon
Author(s): Meng-Ju Sher; Kenneth Hammond; Lysander Christakis; Eric Mazur
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Paper Abstract

Femtosecond laser texturing of silicon yields micrometer scale surface roughness that reduces reflection and enhances light absorption. In this work, we study the potential of using this technique to improve efficiencies of amorphous silicon-based solar cells by laser texturing thin amorphous silicon films. We use a Ti:Sapphire femtosecond laser system to texture amorphous silicon, and we also study the effect of laser texturing the substrate before depositing amorphous silicon. We report on the material properties including surface morphology, light absorption, crystallinity, as well as solar cell efficiencies before and after laser texturing.

Paper Details

Date Published: 15 March 2013
PDF: 6 pages
Proc. SPIE 8608, Laser-based Micro- and Nanopackaging and Assembly VII, 86080R (15 March 2013); doi: 10.1117/12.2005451
Show Author Affiliations
Meng-Ju Sher, Harvard Univ. (United States)
Kenneth Hammond, Harvard Univ. (United States)
Lysander Christakis, The Cambridge School of Weston (United States)
Eric Mazur, Harvard Univ. (United States)

Published in SPIE Proceedings Vol. 8608:
Laser-based Micro- and Nanopackaging and Assembly VII
Udo Klotzbach; Yongfeng Lu; Kunihiko Washio, Editor(s)

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