TY - Front. Optoelectron. A1 - Xiaoyu ZHANG,Michael Grätzel,Jianli HUA T1 - Donor design and modification strategies of metal-free sensitizers for highly-efficient n-type dye-sensitized solar cells Y1 - 2016-03-18 JF - Frontiers of Optoelectronics JO - Front. Optoelectron. SP - 3 EP - 37 VL - 9 IS - 1 UR - https://journal.hep.com.cn/foe N1 - 10.1007/s12200-016-0563-x ER -