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Proceedings Paper

Selective structuring of thin-film solar cells by ultrafast laser ablation
Author(s): Heinz P. Huber; Frank Herrnberger; Stefan Kery; Sandra Zoppel
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Paper Abstract

Thin film solar cells have shown a big potential to decrease cost of manufacturing for photovoltaic power generation. Despite of all research attempts to optimize materials and efficiency the mass production of thin film solar cells is still employing some mechanical steps of structuring, where thin films with a thickness of approximately 1 μm are selectively separated to be galvanic isolated. Here we show the structuring of CIS (CuInSe2) thin films solar cells by picosecond laser ablation. We show a selective removal of single layers on sample substrates and on real solar cells. We utilized high repetition rate lasers in order to maximize process speed enabling an application of ultrafast laser structuring for mass production.

Paper Details

Date Published: 15 February 2008
PDF: 10 pages
Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 688117 (15 February 2008); doi: 10.1117/12.767821
Show Author Affiliations
Heinz P. Huber, Munich Univ. of Applied Sciences (Germany)
Frank Herrnberger, Munich Univ. of Applied Sciences (Germany)
Stefan Kery, Munich Univ. of Applied Sciences (Germany)
Sandra Zoppel, Vorarlberg Univ. of Applied Sciences (Austria)

Published in SPIE Proceedings Vol. 6881:
Commercial and Biomedical Applications of Ultrafast Lasers VIII
Joseph Neev; Stefan Nolte; Alexander Heisterkamp; Christopher B. Schaffer, Editor(s)

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