1. Beijing National Laboratory
for Molecular Sciences, State Key Laboratory of Rare Earth Materials
Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
2. Jiangsu Key Laboratory of Thin
Films and School of Energy, Soochow University, Suzhou 215006, P. R. China
3. Dipartimento di Chimica “G.
Ciamician”, Università di Bologna, Via F. Selmi 2, 40126 Bologna, Italy
4. School of Chemistry and Materials
Science, Heilongjiang University, Harbin
150080, P. R. China