[1] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Peoples R China
[2] Xiangtan Univ, Fac Mat Optoelect & Phys, Xiangtan 411105, Peoples R China
[3] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
[4] Univ Sci & Technol Beijing, State Key Lab Adv Metal & Mat, Beijing 100083, Peoples R China
[5] Xiangtan Univ, Coll Chem, Xiangtan, Hunan, Peoples R China