[1] Jinan Univ, Guangzhou Key Lab Vacuum Coating Technol & New En, Key Lab Optoelect Informat & Sensing Technol Guan, Siyuan Lab,Dept Phys, Guangzhou 510632, Guangdong, Peoples R China
[2] Chalmers, Dept Chem & Chem Engn, SE-41296 Gothenburg, Sweden
[3] South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China