1. Department of Chemistry and Centre for Plastic Electronics Imperial College London London W12 0BZ UK
2. Pohang Accelerator Laboratory (PAL) Pohang University of Science and Technology (POSTECH) Pohang Gyeongbuk 37673 Republic of Korea
3. Cavendish Laboratory University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
4. SPECIFIC IKC College of Engineering Swansea University Bay Campus, Fabian Way Swansea Wales SA1 8EN UK
5. King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Thuwal 23955–6900 Saudi Arabia
6. Department of Chemistry Chemistry Research Laboratory University of Oxford Oxford OX1 3TA UK