1. Massachusetts Institute of Technology, Cambridge, MA, USA
2. Freiburger Materialforschungszentrum, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany
3. Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
4. Aalto University, Espoo, Finland
5. Fraunhofer Institute for Solar Energy Systems, Freiburg, Germany