1. Chemical Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
2. University of Luxembourg Physics and Materials Science Research Unit 41 Rue du Brill Belvaux L‐4422 Luxembourg
3. International Iberian Nanotechnology Laboratory Av. Mestre Jose Veiga Braga 4715‐330 Portugal
4. National Renewable Energy Laboratory 1617 Cole Blvd Lakewood CO 80401 USA
5. Luxembourg Institute of Science and Technology Material Research & Technology Department 41 Rue du Brill Belvaux L‐4422 Luxembourg
6. University of Versailles Institut Lavoisier 45 Avenue des États Unis Versailles 78000 France
7. Avancis GmbH Otto‐Hahn‐Ring 6 81739 München Germany
8. Università degli Studi di Genova via Dodecaneso 31 Genova 16146 Italy