Open Access
EPJ Photovolt.
Volume 3, 2012
Article Number 30302
Number of page(s) 4
Section Semiconductor Thin Films
Published online 17 September 2012

© Owned by the authors, published by EDP Sciences, 2012

Licence Creative Commons
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License 3.0, which permits unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly cited.