Simple Nonfused‐Ring Electron Acceptors with Noncovalently Conformational Locks for Low‐Cost and High‐Performance Organic Solar Cells Enabled by End‐Group Engineering

2021 ◽  
pp. 2108861
Author(s):  
Congqi Li ◽  
Xin Zhang ◽  
Na Yu ◽  
Xiaobin Gu ◽  
Linqing Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Electron Acceptors ◽  
End Group

scholarly journals Molecular design revitalizes the low-cost PTV-polymer for highly efficient organic solar cells

2021 ◽  
Author(s):  
Junzhen Ren ◽  
Pengqing Bi ◽  
Jianqi Zhang ◽  
Jiao Liu ◽  
Jingwen Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Raw Materials ◽  
Low Cost ◽  
Stable Conformation ◽  
Chemical Structures ◽  
Aggregation Effect ◽  
Industrialization Process

Abstract Developing photovoltaic materials with simple chemical structures and easy synthesis still remains a major challenge in the industrialization process of organic solar cells (OSCs). Herein, an ester substituted poly(thiophene vinylene) derivative, PTVT-T, was designed and synthesized in very few steps by adopting commercially available raw materials. The ester groups on the thiophene units enable PTVT-T to have a planar and stable conformation. Moreover, PTVT-T presents a wide absorption band and strong aggregation effect in solution, which are the key characteristics needed to realize high performance in non-fullerene-acceptor (NFA)-based OSCs. We then prepared OSCs by blending PTVT-T with three representative fullerene- and NF-based acceptors, PC71BM, IT-4F and BTP-eC9. It was found that PTVT-T can work well with all the acceptors, showing great potential to match new emerging NFAs. Particularly, a remarkable power conversion efficiency of 16.20% is achieved in a PTVT-T:BTP-eC9-based device, which is the highest value among the counterparts based on PTV derivatives. This work demonstrates that PTVT-T shows great potential for the future commercialization of OSCs.

Altering the Positions of Chlorine and Bromine Substitution on the End Group Enables High‐Performance Acceptor and Efficient Organic Solar Cells

2020 ◽  
Vol 10 (44) ◽  
pp. 2002649
Author(s):  
Zhenghui Luo ◽  
Ruijie Ma ◽  
Zhanxiang Chen ◽  
Yiqun Xiao ◽  
Guangye Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
End Group ◽  
Bromine Substitution

High-performance NIR-sensitive fused tetrathienoacene electron acceptors

2020 ◽  
Vol 8 (6) ◽  
pp. 3011-3017 ◽  
Author(s):  
Wei Wang ◽  
Heng Lu ◽  
Zhenyu Chen ◽  
Boyu Jia ◽  
Kejia Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Electron Acceptors

Fused tetrathienoacene electron acceptors, F8IC1 and F10IC1, were synthesized and compared with thienothiophene-based F6IC. The organic solar cells based on F8IC1 and F10IC1 achieved higher efficiencies than those of the F6IC-based cells.

Replacing Cyano (−C≡N) Group to Design Environmentally Friendly Fused-ring Electron Acceptors

2021 ◽  
Author(s):  
Chuang Yao ◽  
Yezi Yang ◽  
Lei Li ◽  
Maolin Bo ◽  
Cheng Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Cyano Group ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Fused Ring ◽  
Electron Withdrawing Group

Cyano-group (−C≡N) is an electron-withdrawing group, which has been widely used to construct high-performance fused-ring electron acceptors (FREAs). Benefiting from these FREAs, the power conversion efficiency of organic solar cells...

Improving the Performance of Organic Solar Cells by Side Chain Engineering of Fused Ring Electron Acceptors

2021 ◽  
Author(s):  
Ya-Nan Chen ◽  
Rui Zheng ◽  
Jing Wang ◽  
Hang Wang ◽  
Miao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Electron Acceptors ◽  
Side Chain ◽  
Design Strategies ◽  
Fused Ring ◽  
Photoactive Materials

The side chain engineering of the photoactive materials is one of the most commonly used molecular design strategies for developing high performance organic solar cells (OSCs). Herein, two alkyl (or...

Pyran-annulated perylene diimide derivatives as non-fullerene acceptors for high performance organic solar cells

2018 ◽  
Vol 6 (41) ◽  
pp. 11111-11117 ◽  
Author(s):  
Gang Li ◽  
Yu Zhang ◽  
Tao Liu ◽  
Shuaihua Wang ◽  
Dandan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Electron Acceptors ◽  
Perylene Diimide ◽  
Perylene Diimides ◽  
Perylene Diimide Derivatives

Through the coupling of acetylene substituted triphenylamine and pyran-annulated perylene diimides, two novel non-fullerene electron acceptors, coded as TPA-PDI2 and TPA-PDI3, were designed, synthesized and applied in BHJ organic solar cells.

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