Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor

doi:10.1002/adma.201800868

CORC > 化学研究所 > 中国科学院化学研究所

	Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor
	Zhang, Shaoqing 1,2; Qin, Yunpeng 1,2; Zhu, Jie 2; Hou, Jianhui 1,2
刊名	ADVANCED MATERIALS
	2018-05-17
卷号	30 期号:20
关键词	Chlorinated Polymer Donors Fullerene-free Acceptors Low-cost Polymer Solar Cells
ISSN号	0935-9648
DOI	10.1002/adma.201800868
英文摘要	Fluorine-contained polymers, which have been widely used in highly efficient polymer solar cells (PSCs), are rather costly due to their complicated synthesis and low yields in the preparation of components. Here, the feasibility of replacing the critical fluorine substituents in high-performance photovoltaic polymer donors with chlorine is demonstrated, and two polymeric donors, PBDB-T-2F and PBDB-T-2Cl, are synthesized and compared in parallel. The synthesis of PBDB-T-2Cl is much simpler than that of PBDBT-2F. The two polymers have very similar optoelectronic and morphological properties, except the chlorinated polymer possess lower molecular energy levels than the fluorinated one. As a result, the PBDB-T-2Cl-based PSCs exhibit higher open circuit voltage (V-oc) than the PBDB-T-2F-based devices, leading to an outstanding power conversion efficiency of over 14%. This work establishes a more economical design paradigm of replacing fluorine with chlorine for preparing highly efficient polymer donors.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000431961600030
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42729]
专题	中国科学院化学研究所
通讯作者	Hou, Jianhui
作者单位	1.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shaoqing,Qin, Yunpeng,Zhu, Jie,et al. Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor[J]. ADVANCED MATERIALS,2018,30(20).
APA	Zhang, Shaoqing,Qin, Yunpeng,Zhu, Jie,&Hou, Jianhui.(2018).Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor.ADVANCED MATERIALS,30(20).
MLA	Zhang, Shaoqing,et al."Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor".ADVANCED MATERIALS 30.20(2018).