1. Department of Materials Science and Engineering and the Russell Berrie Nanotechnology Institute; Technion-Israel Institute of Technology; 32000 Haifa Israel
2. Photovoltaic lab; Department of Electrical Engineering; Technion - Israel Institute of Technology; Haifa 32000 Israel
3. European Synchrotron Radiation Facility; BP 220 F-38043 Grenoble Cedex France