[1] Donghua Univ, Coll Mat Sci & Engn, Ctr Adv Low Dimens Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
[2] Ctr Excellence Nanosci CAS, Natl Ctr Nanosci & Technol, Key Lab Nanosyst & Hierarch Fabricat CAS, Beijing 100190, Peoples R China