[Wang, Xingyu; Zhou, Weiping; Ma, Yaru; Cao, Mengxiong; Ma, Chunlin] Nanjing Univ Sci & Technol, Sch Sci, Nanjing 210094, Jiangsu, Peoples R China.
[Ma, Chunlin] Huaiyin Normal Univ, Sch Phys & Elect Elect Engn, Huaian 223001, Peoples R China.
[Tan, Weishi] Hunan City Univ, Coll Informat & Elect Engn, All Solid State Energy Storage Mat & Devices Key, Yiyang 413002, Peoples R China.
[Fang, Yong] Changshu Inst Technol, Dept Phys, Jiangsu Lab Adv Funct Mat, Changshu 215500, Jiangsu, Peoples R China.