[1] Xijing Univ, Xian Key Lab Adv Photoelect Mat & Energy Convers D, Xian 710123, Peoples R China
[2] Xijing Univ, Sch Elect Informat, Xian 710123, Shaanxi, Peoples R China
[3] Inorgan Mat Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Shaanxi Key Lab Green Preparat & Functionalizat, Xian 710021, Shaanxi, Peoples R China
[4] Xian Univ Architecture & Technol, Sch Mat Sci & Engn, Xian 710055, Peoples R China