1. Key Laboratory of Flexible Electronics (KLOFE)Institute of Advanced Materials (IAM)Nanjing Tech University (NJ Tech) 5 Xinmofan Road Nanjing 210009 P. R. China
2. Qingdao Industrial Energy Storage Technology InstituteQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
3. State Key Laboratory of Supramolecular Structure and MaterialsJilin University Changchun 130012 P. R. China
4. State Key Laboratory of Luminescent Materials and DevicesInstitute of Polymer Optoelectronic Materials and DevicesSouth China University of Technology No. 381 Wushan Road, Tianhe District Guangzhou 510640 P. R. China
5. Key Shaanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 P. R. China