1. State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and Telecommunications 100876 Beijing P. R. China
2. School of Materials Science & EngineeringBeijing Institute of Technology 10081 Beijing China
3. Beijing National Laboratory for Molecular SciencesState Key Laboratory for Structural Chemistry of Unstable and Stable SpeciesCollege of Chemistry and Molecular EngineeringPeking University 100871 Beijing P. R. China
4. Hubei Collaborative Innovation Center for Advanced Organochemical MaterialsMinistry‐of‐Education Key Laboratory for the Synthesis and Applications of Organic Functional MoleculesHubei University Wuhan 430062 P. R. China
5. Institute of Materials for Electronics and Energy Technology (i‐MEET)Department of Materials Science and EngineeringFriedrich‐Alexander‐Universität (FAU) Erlangen‐Nürnberg Martensstraße 7 91058 Erlangen Germany