1. School of Materials Science and Engineering Jiangsu Engineering Laboratory of Light‐Electricity‐Heat Energy‐Converting Materials and Applications Changzhou University Changzhou 213164 P. R. China
2. Lehrstuhl für Funktionelle Materialien Physik‐Department Technische Universität München 85748 Garching Germany
3. Research Center for New Energy Technology (RCNET) Shanghai Institute of Microsystem and Information technology (SIMIT) Chinese Academy of Science (CAS) Jiading Shanghai 201800 China
4. Deutsches Elektronen‐Synchrotron (DESY) 22607 Hamburg Germany
5. Department of Fiber and Polymer Technology KTH Royal Institute of Technology Stockholm 10044 Sweden
6. Heinz Maier‐Leibnitz‐Zentrum Technische Universität München 85748 Garching Germany