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Structured monocrystalline Si thin-film modules from layer-transfer using the porous Si (PSI) process

Published online by Cambridge University Press:  21 March 2011

Auer Richard  and
Brendel Rolf
Auer Richard
Affiliation:
Bavarian Center for Applied Energy Research (ZAE Bayern) Am Weichselgarten 7, D-91058 Erlangen, Germany
Brendel Rolf
Affiliation:
Bavarian Center for Applied Energy Research (ZAE Bayern) Am Weichselgarten 7, D-91058 Erlangen, Germany
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Abstract

We demonstrate a novel technique for fabricating monolithically series connected solar modules from surface structured thin monocrystalline Si films that we prepare by layer transfer using porous Si (PSI process). The novel series connection technique bases on reactive ion etching of the silicon film in a microwave plasma prior and after layer transfer. The module has an area of 25 cm2 and consists of 5 unit cells that have a film thickness of 16 µm. We measure an open-circuit voltage of 3028 mV and a confirmed efficiency of 9.9%. The Si film has a randomly textured surface for light trapping.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 681: Symposium I – Wafer Bonding and Thinning Techniques for Materials Integration , 2001 , I9.2
Copyright
Copyright © Materials Research Society 2001

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References

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