1. Optoelectronics Group, Cavendish Laboratory University of Cambridge J J Thomson Avenue Cambridge CB3 0HE UK
2. Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
3. School of Biological and Chemical Sciences Queen Mary University of London Mile End Road London E1 4NS UK
4. Grenoble Alpes University, CNRS, Grenoble INP Institut Néel 25 rue des Martyrs Grenoble 38042 France
5. Laboratory for Chemistry of Novel Materials University of Mons Mons B‐7000 Belgium
6. X‐Ray Science Division Argonne National Laboratory Lemont IL 60439 USA
7. School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology Atlanta GA 30332 USA
8. KAUST Solar Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
9. Department of Chemistry University of Oxford 12 Mansfield Road Oxford OX1 3TA UK