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

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 8 vom: 09. Feb.
1. Verfasser: Liu, Deyu (VerfasserIn)
Weitere Verfasser: Wang, Junyi, Gu, Chunyang, Li, Yonghai, Bao, Xichang, Yang, Renqiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article acceptor phase aryl rings benzodithiophene morphology polymer solar cells
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245 1 0 |a 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 
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500 |a Date Completed 01.08.2018 
500 |a Date Revised 30.09.2020 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 
520 |a Two series of new polymers with medium and wide bandgaps to match fullerene (PC71 BM) 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 PC71 BM, 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 
650 4 |a Journal Article 
650 4 |a acceptor phase 
650 4 |a aryl rings 
650 4 |a benzodithiophene 
650 4 |a morphology 
650 4 |a polymer solar cells 
700 1 |a Wang, Junyi  |e verfasserin  |4 aut 
700 1 |a Gu, Chunyang  |e verfasserin  |4 aut 
700 1 |a Li, Yonghai  |e verfasserin  |4 aut 
700 1 |a Bao, Xichang  |e verfasserin  |4 aut 
700 1 |a Yang, Renqiang  |e verfasserin  |4 aut 
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773 1 8 |g volume:30  |g year:2018  |g number:8  |g day:09  |g month:02 
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