A Multifluorination Strategy Toward Wide Bandgap Polymers for Highly Efficient Organic Solar Cells

Chen, Jinming1,2; Li, Dongyan1; Su, Mingbin1,2; Xiao, Yonghong1,2; Chen, Hui3,4; Lin, Man1,2; Qiao, Xiaolan6; Dang, Li1,2; Huang, Xiao-Chun1,2,5; He, Feng3,4,7; Wu, Qinghe1,2,5

2023

10.1002/anie.202215930

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   Impact Factor & Quartile

1433-7851

1521-3773

Creating new electron-deficient unit is highly demanded to develop high-performance polymer donors for non-fullerene organic solar cells (OSCs). Herein, we reported a multifluorinated unit 4,5,6,7-tetrafluoronaphtho[2,1-b : 3,4-b ']dithio-phene (FNT) and its polymers PFNT-F and PFNT-Cl. The advantages of multifluorination: (1) it enables the polymers to exhibit low-lying HOMO (approximate to-5.5 eV) and wide band gap (approximate to 2.0 eV); (2) the short interactions (F center dot center dot center dot H, F center dot center dot center dot F) endow the polymers with properties of high film crystallinity and efficient hole transport; (3) well miscibility with NFAs that leads to a more well-defined nanofibrous morphology and face-on orientation in the blend films. Therefore, the PFNT-F/Cl : N3 based OSCs exhibit impressive FF values of 0.80, and remarkable PCEs of 17.53 % and 18.10 %, which make them ranked the best donor materials in OSCs. This work offers new insights into the rational design of high-performance polymers by multifluorination strategy.

Multifluorination Polymer Donor Solar Cell Wide Band Gap

SCI

English

NI Journal Papers

Others

National Natural Science Foundation of China[22179076] ; Fund for Zhujiang Young Scholar[18220203] ; Natural Science Foundation of Guangdong Province[2022A1515011803] ; Department of Education of Guangdong Province[2021KCXTD032]

Chemistry

Chemistry, Multidisciplinary

WOS:000919032800001

WILEY-V C H VERLAG GMBH

CHEMISTRY

2-s2.0-85146751666

Web of Science

1.Shantou Univ, Dept Chem, Shantou 515063, Guangdong, Peoples R China
2.Shantou Univ, Key Lab Preparat & Applicat Ordered Struct Mat Gua, Shantou 515063, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
5.Chem & Chem Engn Guangdong Lab, Shantou 515063, Peoples R China
6.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
7.Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Shenzhen 518055, Peoples R China

Chen, Jinming,Li, Dongyan,Su, Mingbin,et al. A Multifluorination Strategy Toward Wide Bandgap Polymers for Highly Efficient Organic Solar Cells[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2023,62(10).

Chen, Jinming.,Li, Dongyan.,Su, Mingbin.,Xiao, Yonghong.,Chen, Hui.,...&Wu, Qinghe.(2023).A Multifluorination Strategy Toward Wide Bandgap Polymers for Highly Efficient Organic Solar Cells.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,62(10).

Chen, Jinming,et al."A Multifluorination Strategy Toward Wide Bandgap Polymers for Highly Efficient Organic Solar Cells".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 62.10(2023).