[1] Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci BNLMS, Beijing 100190, Peoples R China
[3] IFW Dresden, Inst Integrat Nanosci, D-01069 Dresden, Germany
[4] Tech Univ Chemnitz, D-09107 Chemnitz, Germany
[5] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[6] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China