1. Solar Energy Research Institute of SingaporeNational University of Singapore 7 Engineering Drive 1 117574 Singapore Singapore
2. Photovoltaic Materials and DevicesDelft University of Technology Mekelweg 4 2628 CD Delft The Netherlands
3. Jiaxing Key Laboratory of Advanced Photovoltaic MaterialsZhejiang Jinko Solar Co. Ltd No. 58 Yuanxi Road, Yuanhua Industrial Zone Haining 314416 Zhejiang China