1. Organic Semiconductor Centre SUPA School of Physics and Astronomy University of St Andrews North Haugh St Andrews Fife KY16 9SS UK
2. Organic Semiconductor Centre EaStCHEM School of Chemistry University of St Andrews St Andrews Fife KY16 9ST UK
3. Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211800 China
4. Center for Organic Photonics and Electronics Research (OPERA) Kyushu University 744 Motooka, Nishi‐ku Fukuoka 819‐0395 Japan
5. JST ERATO Adachi Molecular Exciton Engineering Project Kyushu University 744 Motooka, Nishi‐ku Fukuoka 819‐0395 Japan
6. Organic Optoelectronics Unit Okinawa Institute of Science and Technology Graduate University 1919‐1 Tancha, Onna‐son Okinawa 904‐0495 Japan
7. International Institute for Carbon Neutral Energy Research (WPI‐I2CNER) Kyushu University 744 Motooka, Nishi‐ku Fukuoka 819‐0395 Japan