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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, Deyu1,2; Wang, Junyi1; Gu, Chunyang1; Li, Yonghai1; Bao, Xichang1; Yang, Renqiang1
2018-02-22
Source PublicationADVANCED MATERIALS
ISSN0935-9648
Volume30Issue:8
AbstractTwo 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.
SubtypeArticle
KeywordAcceptor Phase Aryl Rings Benzodithiophene Morphology Polymer Solar Cells
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1002/adma.201705870
WOS KeywordORGANIC PHOTOVOLTAICS ; HIGH-EFFICIENCY ; ELECTRON-ACCEPTOR ; BUILDING-BLOCKS ; BAND-GAP ; DESIGN ; SEMICONDUCTORS ; AGGREGATION ; CATHODE ; CHAINS
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Funding OrganizationNational 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)
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000425449300029
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/10654
Collection先进有机功能材料研究组
Corresponding AuthorYang, Renqiang
Affiliation1.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
Recommended Citation
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).
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