[1] Soochow Univ, Coll Phys Optoelect & Energy, Suzhou 215006, Jiangsu, Peoples R China
[2] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215006, Jiangsu, Peoples R China
[3] Huasheng Chem Corp, Zhangjiagang 215635, Jiangsu, Peoples R China
[4] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215006, Jiangsu, Peoples R China