[1] CAS, Inst Chem, Beijing 100190, Peoples R China
[2] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden
[3] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China
[4] Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany