1. ICFO‐Institut de Ciencies Fotoniques The Barcelona Institute of Science and Technology Castelldefels Barcelona 08860 Spain
2. Central European Institute of Technology Brno University of Technology Brno 612 00 Czech Republic
3. Tim Taylor Department of Chemical Engineering Kansas State University Manhattan KS 66506 USA
4. ICREA‐Institució Catalana de Recerca i Estudis Avançats Passeig Lluís Campanys 23 Barcelona 08010 Spain
5. Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge TN 37831 USA