Side chains and backbone structures influence on 4,7-dithien-2-yl-2,1,3-benzothiadiazole (DTBT)-based low-bandgap conjugated copolymers for organic photovoltaics

2013 ◽  
Vol 6 (4) ◽  
pp. 418-428 ◽  
Author(s):  
Debin Ni ◽  
Dong Yang ◽  
Shuying Ma ◽  
Guoli Tu ◽  
Jian Zhang
Keyword(s):  
Organic Photovoltaics ◽  
Side Chains ◽  
Low Bandgap ◽  
Conjugated Copolymers

Low bandgap poly(thienylenemethine) derivatives bearing terarylene moieties in the side chains

2014 ◽  
Vol 5 (24) ◽  
pp. 6977-6989 ◽  
Author(s):  
Sangbum Ahn ◽  
Kazuki Yabumoto ◽  
Yongsoo Jeong ◽  
Kazuo Akagi
Keyword(s):  
Side Chains ◽  
Low Bandgap

Novel low bandgap poly(thienylenemethine) derivatives bearing terphenylene moieties in the side chains were synthesised. The bandgaps were controlled by introducing quinoidal structures into the benzonoidal main chains.

The Synthesis of Novel Oligomer 4,8-Di(4-hexyl-2-thienyl)-2λ4δ2-Benzo[1,2-c;4,5-c’]bis[1,2,5]-Thiadiazole

2012 ◽  
Vol 602-604 ◽  
pp. 696-699
Author(s):  
Xiao Xiao Zhuang ◽  
Xiao Long Lei ◽  
Xiao Xia Sun
Keyword(s):  
Side Chains ◽  
Coupling Reactions ◽  
Low Bandgap ◽  
Palladium Catalyzed ◽  
Efficient Route ◽  
High Yields ◽  
Bandgap Materials

Heterocyclic oligomer based on BBT bearing solubilizing side chains have been synthesized in high yields over six steps from readily available starting materials. This approach offers a much milder, shorter, and more efficient route to BBT derivatives than current methods. This unit can then be used in the synthesis of low bandgap materials via palladium-catalyzed coupling reactions.

Polymer solar cells based on D–A low bandgap copolymers containing fluorinated side chains of thiadiazoloquinoxaline acceptor and benzodithiophene donor units

2018 ◽  
Vol 42 (3) ◽  
pp. 1626-1633 ◽  
Author(s):  
M. L. Keshtov ◽  
S. A. Kuklin ◽  
A. R. Khokhlov ◽  
I. O. Konstantinov ◽  
N. V. Nekrasova ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cell ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Side Chains ◽  
Low Bandgap

The increase in the fluorine atoms in the copolymer improves the power conversion efficiency of the polymer solar cell.

Synthesis and applications of novel low bandgap star-burst molecules containing a triphenylamine core and dialkylated diketopyrrolopyrrole arms for organic photovoltaics

2012 ◽  
Vol 22 (16) ◽  
pp. 7945 ◽  
Author(s):  
Duryodhan Sahu ◽  
Chia-Hua Tsai ◽  
Hung-Yu Wei ◽  
Kuo-Chuan Ho ◽  
Feng-Chih Chang ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Low Bandgap

Ultrafast relaxation of charge-transfer excitons in low-bandgap conjugated copolymers

2012 ◽  
Vol 3 (7) ◽  
pp. 2270 ◽  
Author(s):  
Inchan Hwang ◽  
Serge Beaupré ◽  
Mario Leclerc ◽  
Gregory D. Scholes
Keyword(s):  
Charge Transfer ◽  
Low Bandgap ◽  
Ultrafast Relaxation ◽  
Charge Transfer Excitons ◽  
Conjugated Copolymers

Side-chain engineering for fine-tuning of molecular packing and nanoscale blend morphology in polymer photodetectors

2017 ◽  
Vol 8 (13) ◽  
pp. 2055-2062 ◽  
Author(s):  
Liuyong Hu ◽  
Wenqiang Qiao ◽  
Xiaokang Zhou ◽  
Jinfeng Han ◽  
Xiaoqin Zhang ◽  
...  
Keyword(s):  
Molecular Packing ◽  
Fine Tuning ◽  
Side Chain ◽  
Side Chains ◽  
Low Bandgap ◽  
Blend Morphology

Enhancing the performance of polymer photodetectors by finely tuning the side chains of low-bandgap polymers.

scholarly journals An effective strategy to enhance the dielectric constant of organic semiconductors – CPDTTPD-based low bandgap polymers bearing oligo(ethylene glycol) side chains

2018 ◽  
Vol 6 (3) ◽  
pp. 500-511 ◽  
Author(s):  
Jeroen Brebels ◽  
Evgenia Douvogianni ◽  
Dries Devisscher ◽  
Raghavendran Thiruvallur Eachambadi ◽  
Jean Manca ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Ethylene Glycol ◽  
Organic Semiconductors ◽  
Dielectric Constants ◽  
Side Chains ◽  
Effective Strategy ◽  
Low Bandgap

Gradually increasing dielectric constants (up to 6.3) are obtained for a series of PCPDTTPD polymers.

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