[He, Zhijian; Xie, Shuhong; Xie, SH; Liu, Yunya] Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Peoples R China.
[Peng, Jinlin] Hunan City Univ, Coll Informat & Elect Engn, All Solid State Energy Storage Mat & Devices Key L, Yiyang 413002, Peoples R China.
[Lei, Chihou] St Louis Univ, Dept Aerosp & Mech Engn, St Louis, MO 63103 USA.
[Zou, Daifeng] Hunan Univ Sci & Technol, Sch Phys & Elect Sci, Xiangtan 411201, Peoples R China.