1. Key Laboratory of Functional
Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080,
P.R. China
2. State Key Laboratory
on Integrated
Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012,
P.R. China