[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
[2] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1050 Lausanne, Switzerland
[3] E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China
[4] E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China
[5] Univ Oslo, Dept Chem, N-0315 Oslo, Norway
[6] Univ Oslo, CTCC, N-0315 Oslo, Norway