1. POLYMAT, University of the Basque Country UPV/EHU Av. de Tolosa 72, 20018, San Sebastián, Spain
2. Imperial College London, Exhibition Road, London SW7 2AZ, UK
3. Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain
4. National Renewable Energy Laboratory, 15013 denver West Parkway, Golden, Colorado 80401, USA
5. Renewable and Sustainable Energy Institute, University of Colorado, Boulder 4001 Discovery Drive, Boulder, CO 80303, USA
6. Cornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University, Ithaca, New York 14853, USA
7. Materials Science and Engineering, North Carolina State University, Raleigh NC 27695, USA
8. School of Materials Science and Engineering and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia, 30332, USA
9. Universidade da Coruña, Campus Industrial de Ferrol, CITENI, Esteiro, 15471 Ferrol, Spain