1373266-99-9Relevant articles and documents
Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers
Guo, Kunpeng,Yan, Keyou,Lu, Xiaoqing,Qiu, Yongcai,Liu, Zhike,Sun, Jianwei,Yan, Feng,Guo, Wenyue,Yang, Shihe
, p. 2214 - 2217 (2012/06/30)
This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D-π-A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl-thiopheneyl-phenyl π-bridges (DTF-C3). Devices based on these dyes exhibit a dramatically improved performance with the increasing π-bridge length, culminating with DTF-C3 in η = 8.29% under standard global AM 1.5 illumination.