[Yao, Hong; Yuan, D; Li, Yuhang; Yuan, Du; Liu, Xiangjie; Li, Xin] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.
[Wong, Ming Wah; Chen, Yingqian] Natl Univ Singapore, Dept Chem, Block S8,3 Sci Dr 3, Singapore 117543, Singapore.
[Zhang, Yizhou; Zhang, YZ] Nanjing Univ Informat Sci & Technol, Inst Adv Mat & Flexible Elect IAMFE, Sch Chem & Mat Sci, Nanjing 210044, Peoples R China.
[Zhang, Haitao] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China.