1. School of Materials Science and EngineeringJiangsu Key Laboratory of Environmentally Friendly Polymeric MaterialsJiangsu Engineering Laboratory of Light‐Electricity‐Heat Energy‐Converting Materials and ApplicationsChangzhou University Changzhou 213164 China
2. Department of Chemistry and Chemical EngineeringChalmers University of Technology SE‐412 96 Göteborg Sweden
3. College of ChemistryXiangtan University Xiangtan 411105 China
4. The Organic Photonics and Electronics GroupUmeå University SE‐90187 Umea Sweden