Synthesis and photovoltaic properties of copolymers of carbazole and thiophene with conjugated side chain containing acceptor end groups

2011 ◽  
Vol 2 (8) ◽  
pp. 1678 ◽  
Author(s):  
Zhi-Guo Zhang ◽  
Haijun Fan ◽  
Jie Min ◽  
Siyuan Zhang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Side Chain ◽  
Photovoltaic Properties ◽  
End Groups

Synthesis and photovoltaic properties of a non-fullerene acceptor with F-phenylalkoxy as a side chain

2018 ◽  
Vol 42 (23) ◽  
pp. 19279-19284 ◽  
Author(s):  
Mei Luo ◽  
Zhenzhen Zhang ◽  
Liuliu Feng ◽  
Hongjian Peng ◽  
Lihui Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Donor Acceptor

A new acceptor–donor–acceptor (A–D–A) non-fullerene acceptor (ITIC-FOR) was synthesized and applied in non-fullerene solar cells with a PCE of up to 7.33%.

scholarly journals Effect of main and side chain chlorination on the photovoltaic properties of benzodithiophene-alt-benzotriazole polymers

2020 ◽  
Vol 8 (43) ◽  
pp. 15426-15435
Author(s):  
Haijun Bin ◽  
Indunil Angunawela ◽  
Ruijie Ma ◽  
Asritha Nallapaneni ◽  
Chenhui Zhu ◽  
...  
Keyword(s):  
Energy Level ◽  
Charge Transport ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Homo Energy Level

Introduction of chlorine in the conjugated side chains significantly improves open-circuit voltage and power conversion efficiency, benefiting from a lower HOMO energy level, well-balanced charge transport and superior nanoscale morphology.

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.

Synthesis, characterization and photovoltaic properties of thiophene copolymers containing conjugated side-chain

2007 ◽  
Vol 43 (3) ◽  
pp. 855-861 ◽  
Author(s):  
Zhan’ao Tan ◽  
Erjun Zhou ◽  
Yi Yang ◽  
Youjun He ◽  
Chunhe Yang ◽  
...  
Keyword(s):  
Side Chain ◽  
Photovoltaic Properties

Linear solubilizing side chain substituents enhance the photovoltaic properties of two-dimensional conjugated benzodithiophene-based polymers

Polymer ◽  
2015 ◽  
Vol 79 ◽  
pp. 262-270 ◽  
Author(s):  
Jian-Ming Jiang ◽  
Putikam Raghunath ◽  
Yu-Che Lin ◽  
Hsi-Kuei Lin ◽  
Chen-Lin Ko ◽  
...  
Keyword(s):  
Side Chain ◽  
Two Dimensional ◽  
Photovoltaic Properties

D–A conjugated polymers based on thieno[3,2-b]indole (TI) and 2,1,3-benzodiathiazole (BT) derivatives: synthesis, characterization and side-chain influence on photovoltaic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45873-45883 ◽  
Author(s):  
Hongyan Huang ◽  
Quan Li ◽  
Meng Qiu ◽  
Zheng Wang ◽  
Xinzhen Zhang ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Photovoltaic Cells ◽  
Side Chain ◽  
Photovoltaic Properties

Thieno[3,2-b]indole (TI) derivatives were developed via Cadogan annulation for constructing D–A copolymers. Their performance in photovoltaic cells were finely tuned by side-chain engineering.

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