1. Department of Chemistry and Centre for Processable Electronics Imperial College London Molecular Sciences Research Hub (White City Campus) 80 Wood Lane Shepherd's Bush London W12 0BZ UK
2. Department of Chemical and Materials Engineering, and Centre for Applied Energy Research University of Kentucky Lexington KY4050 USA
3. Department of Physics and Centre for Processable Electronics Imperial College London South Kensington Campus London SW7 2AZ UK
4. Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955–6900 Saudi Arabia
5. POLYMAT and Polymer Science and Technology Department Faculty of Chemistry University of the Basque Country UPV/EHU Manuel de Lardizabal 3 20018 Donostia–San Sebastián Spain
6. Campus Industrial de Ferrol, CITENI Universidade da Coruña Campus Esteiro S/N Ferrol 15403 Spain