Subtle side-chain tuning on terminal groups of small molecule electron acceptors for efficient fullerene-free polymer solar cells

2017 ◽  
Vol 5 (29) ◽  
pp. 15175-15182 ◽  
Author(s):  
Jie Zhu ◽  
Sunsun Li ◽  
Xiaoyu Liu ◽  
Huifeng Yao ◽  
Fenghao Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Electron Acceptors ◽  
Side Chain ◽  
End Groups

The influence of alkoxyl end-groups on the photovoltaic performance of small molecular acceptors was studied.

scholarly journals Efficient polymer solar cells based on a new benzo[1,2-b:4,5-b′]dithiophene derivative with fluorinated alkoxyphenyl side chain

2015 ◽  
Vol 3 (6) ◽  
pp. 3130-3135 ◽  
Author(s):  
Weichao Chen ◽  
Zhengkun Du ◽  
Liangliang Han ◽  
Manjun Xiao ◽  
Wenfei Shen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Side Chain

A polymer (PBDTPF-DTBT) was designed and synthesized, which exhibited high photovoltaic performance with PCE = 7.02%.

scholarly journals Design of Thienothiophene-Based Copolymers with Various Side Chain-End Groups for Efficient Polymer Solar Cells

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2964
Author(s):  
Ying-Chieh Chao ◽  
Jhe-Han Chen ◽  
Yi-Jie Chiou ◽  
Po-lin Kao ◽  
Jhao-Lin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Microphase Separation ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Photophysical Properties ◽  
Morphological Properties ◽  
Side Chain ◽  
Blend Films ◽  
End Groups ◽  
Thiophene Moiety

Three two-dimensional donor–acceptor conjugated copolymers consisting of a benzo[1,2-b:4,5-b′]dithiophene derivative and thieno[3,2-b]thiophene with a conjugated side chain were designed and synthesized for use in bulk heterojunction (BHJ) or nonfullerene polymer solar cells (PSCs). Through attaching various acceptor end groups to the conjugated side chain on the thieno[3,2-b]thiophene moiety, the electronic, photophysical, and morphological properties of these copolymers were significantly affected. It was found that the intermolecular charge transfer interactions were enhanced with the increase in the acceptor strength on the thieno[3,2-b]thiophene moiety. Moreover, a better microphase separation was obtained in the copolymer: PC71BM or ITIC blend films when a strong acceptor end group on the thieno[3,2-b]thiophene moiety was used. As a result, BHJ PSCs based on copolymer:PC71BM blend films as active layers exhibited power conversion efficiencies from 2.82% to 4.41%, while those of nonfullerene copolymer:ITIC-based inverted PSCs ranged from 6.09% to 7.25%. These results indicate the side-chain engineering on the end groups of thieno[3,2-b]thiophene unit through a vinyl bridge linkage is an effective way to adjust the photophysical properties of polymers and morphology of blend films, and also have a significant influence on devices performance.

Energy-Level Modulation of Small-Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells

2016 ◽  
Vol 28 (42) ◽  
pp. 9423-9429 ◽  
Author(s):  
Sunsun Li ◽  
Long Ye ◽  
Wenchao Zhao ◽  
Shaoqing Zhang ◽  
Subhrangsu Mukherjee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Small Molecule ◽  
Polymer Solar Cells ◽  
Electron Acceptors

scholarly journals Improved Photovoltaic Performance of a Side-Chain D-A Polymer in Polymer Solar Cells by Shortening the Phenyl Spacer between the D and A Units

2014 ◽  
Vol 215 (21) ◽  
pp. 2075-2083 ◽  
Author(s):  
Wenyan Su ◽  
Qunping Fan ◽  
Manjun Xiao ◽  
Jianhua Chen ◽  
Pei Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Side Chain

Understanding the impact of side-chains on photovoltaic performance in efficient all-polymer solar cells

2019 ◽  
Vol 7 (40) ◽  
pp. 12641-12649 ◽  
Author(s):  
Bin Li ◽  
Qilin Zhang ◽  
Gaole Dai ◽  
Hua Fan ◽  
Xin Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymer ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Cell Performance ◽  
Side Chain ◽  
Solar Cell Performance ◽  
The Impact

We performed side-chain fluorination and alkylthio substituent in a template conjugated polymer and further investigate their impact on polymer–polymer solar cell performance.

scholarly journals An investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene cores

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39231-39240
Author(s):  
N. A. Mica ◽  
S. A. J. Almahmoud ◽  
L. Krishnan Jagadamma ◽  
G. Cooke ◽  
I. D. W. Samuel
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Chemical Nature ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Acceptor Side

The chemical nature of the acceptor side chain plays an important role in the processability and photovoltaic performance of EDOT-based small molecule donors.

Side chain effect of nonfullerene acceptors on the photovoltaic performance of wide band gap polymer solar cells

2016 ◽  
Vol 220 ◽  
pp. 578-584 ◽  
Author(s):  
Ran Hou ◽  
Shiyu Feng ◽  
Xue Gong ◽  
Yahui Liu ◽  
Jicheng Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Wide Band ◽  
Side Chain ◽  
Wide Band Gap

Influence of the dipole moment on the photovoltaic performance of polymer solar cells employing non-fullerene small molecule acceptor

Solar Energy ◽  
2021 ◽  
Vol 221 ◽  
pp. 393-401
Author(s):  
María Privado ◽  
Pilar de la Cruz ◽  
Prateek Malhotra ◽  
Ganesh D. Sharma ◽  
Fernando Langa
Keyword(s):  
Solar Cells ◽  
Dipole Moment ◽  
Small Molecule ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance
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