Stirring Up Acceptor Phase and Controlling Morphology via Choosing Appropriate Rigid Aryl Rings as Lever Arms in Symmetry-Breaking Benzodithiophene for High-Performance Fullerene and Fullerene-Free Polymer Solar Cells

doi:10.1002/adma.201705870

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 先进有机功能材料团队

	Stirring Up Acceptor Phase and Controlling Morphology via Choosing Appropriate Rigid Aryl Rings as Lever Arms in Symmetry-Breaking Benzodithiophene for High-Performance Fullerene and Fullerene-Free Polymer Solar Cells
	Liu, Deyu 1,2; Wang, Junyi 1; Gu, Chunyang 1; Li, Yonghai 1; Bao, Xichang 1; Yang, Renqiang 1
刊名	ADVANCED MATERIALS
	2018-02-22
卷号	30 期号:8
关键词	Acceptor Phase Aryl Rings Benzodithiophene Morphology Polymer Solar Cells
ISSN号	0935-9648
DOI	10.1002/adma.201705870
文献子类	Article
英文摘要	Two series of new polymers with medium and wide bandgaps to match fullerene (PC71BM) and fullerene-free 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2,3-d]-s-indaceno[1,2-b:5,6-b]dithiophene (ITIC) acceptors are designed and synthesized, respectively. For constructing the key donor building blocks, the effective symmetry-breaking strategy is employed. Two common aromatic rings (thiophene and benzene) are chosen as one side substituted groups in the asymmetric benzodithiophene (BDT) monomers. In addition, another rigid benzene ring is inserted between aryl and thioether in the side chains, which results in larger twisting and destroying the aggregation and forming longer lever arms. As a result, highly ordered polymers (PBDTsTh-FBT and PBDTsPh-FBT) with strong aggregation properties can blend well with roughly spherical PC71BM, while amorphous polymers (PBDTsThPh-BDD and PBDTsPhPh-BDD) with long and rigid aryl rings show good miscibility with elongated ITIC, and finally, both devices exhibit excellent power conversion efficiencies over 10%. Thus, it clearly shows that the asymmetric BDT unit is an excellent donor building block to construct highly efficient photovoltaic polymers. Meanwhile, this work demonstrates that it is not necessary that high-performance fullerene-free polymer solar cells (PSCs) require highly ordered microstructures in the blending films, different from the fullerene-based PSCs.
WOS关键词	ORGANIC PHOTOVOLTAICS ; HIGH-EFFICIENCY ; ELECTRON-ACCEPTOR ; BUILDING-BLOCKS ; BAND-GAP ; DESIGN ; SEMICONDUCTORS ; AGGREGATION ; CATHODE ; CHAINS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000425449300029
资助机构	National Natural Science Foundation of China(51773220 ; Ministry of Science and Technology of China(2014CB643501) ; Department of Science and Technology of Shandong Province(ZR2017ZB0314) ; 51573205 ; 21502205)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10653]
专题	青岛生物能源与过程研究所_先进有机功能材料团队
通讯作者	Yang, Renqiang
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Deyu,Wang, Junyi,Gu, Chunyang,et al. Stirring Up Acceptor Phase and Controlling Morphology via Choosing Appropriate Rigid Aryl Rings as Lever Arms in Symmetry-Breaking Benzodithiophene for High-Performance Fullerene and Fullerene-Free Polymer Solar Cells[J]. ADVANCED MATERIALS,2018,30(8).
APA	Liu, Deyu,Wang, Junyi,Gu, Chunyang,Li, Yonghai,Bao, Xichang,&Yang, Renqiang.(2018).Stirring Up Acceptor Phase and Controlling Morphology via Choosing Appropriate Rigid Aryl Rings as Lever Arms in Symmetry-Breaking Benzodithiophene for High-Performance Fullerene and Fullerene-Free Polymer Solar Cells.ADVANCED MATERIALS,30(8).
MLA	Liu, Deyu,et al."Stirring Up Acceptor Phase and Controlling Morphology via Choosing Appropriate Rigid Aryl Rings as Lever Arms in Symmetry-Breaking Benzodithiophene for High-Performance Fullerene and Fullerene-Free Polymer Solar Cells".ADVANCED MATERIALS 30.8(2018).