[1] Shanghai Univ Elect Power, Coll Math & Phys, 2103 Pingliang Rd, Shanghai 200090, Peoples R China
[2] Henan Univ, Key Lab Special Funct Mat, Minist Educ, Sch Mat Sci & Engn, Kaifeng 475004, Peoples R China
[3] Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Kaifeng 475004, Peoples R China
[4] Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China