1. Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 P. R. China
2. Frontiers Science Center for Transformative Molecules Center of Hydrogen Science, and School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China
3. Institute of Materials for Electronics and Energy Technology (i‐MEET) Friedrich‐Alexander‐University Erlangen‐Nürnberg 91058 Erlangen Germany
4. Helmholtz‐Institute Erlangen‐Nürnberg for Renewable Energy (HI ERN) Forschungszentrum Jülich (FZJ) 91058 Erlangen Germany