Impact of Alkyl Side Chains on Optoelectronic and Photovoltaic Properties of Novel Benzodithiophenedione‐Based Conjugated Polymers

2019 ◽  
Vol 13 (9) ◽  
pp. 1900154 ◽  
Author(s):  
Alexander Akkuratov ◽  
Ilya Martinov ◽  
Irina Avilova ◽  
Pavel Troshin
Keyword(s):  
Conjugated Polymers ◽  
Side Chains ◽  
Photovoltaic Properties ◽  
Alkyl Side Chains

A strong influence of the positions of solubilizing alkyl side chains on optoelectronic and photovoltaic properties of TTBTBTT-based conjugated polymers

2015 ◽  
Vol 3 (7) ◽  
pp. 1497-1506 ◽  
Author(s):  
A. V. Akkuratov ◽  
D. K. Susarova ◽  
Y. L. Moskvin ◽  
D. V. Anokhin ◽  
A. V. Chernyak ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
Strong Influence ◽  
Relative Orientation ◽  
Side Chains ◽  
Photovoltaic Properties ◽  
Alkyl Side Chains

It has been shown that positions and relative orientation of the alkyl side chains in the carbazole–TTBTBTT co-polymers affect significantly their optoelectronic, charge transport and photovoltaic properties.

Consistent red luminescence in π-conjugated polymers with tuneable elastic moduli over five orders of magnitude

2020 ◽  
Vol 7 (5) ◽  
pp. 1421-1426 ◽  
Author(s):  
Zhenfeng Guo ◽  
Akira Shinohara ◽  
Chengjun Pan ◽  
Florian J. Stadler ◽  
Zhonghua Liu ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Conjugated Polymers ◽  
Elastic Moduli ◽  
Luminescent Properties ◽  
Side Chains ◽  
Wide Range ◽  
Alkyl Side Chains ◽  
Red Luminescence

Bulky but flexible alkyl side chains enable π-conjugated polymers to possess wide-range elastic modulus tuneability, yet consistent red luminescent properties.

High-performance near-infrared organic phototransistors based on diketopyrrolopyrrole conjugated polymers with partial removal of long branched alkyl side chains

2020 ◽  
Vol 8 (47) ◽  
pp. 16915-16922
Author(s):  
Yu Tang ◽  
Weijie Ge ◽  
Ping Deng ◽  
Qiaoming Zhang ◽  
Yingjie Liao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Charge Transport ◽  
High Performance ◽  
Near Infrared ◽  
Side Chains ◽  
Partial Removal ◽  
Nir Absorption ◽  
Alkyl Side Chains

Near-infrared (NIR) phototransistors based on diketopyrrolopyrrole polymers with partial removal of side chains are reported with improved NIR photoresponses, which take advantage of both strengthened NIR absorption and improved charge transport.

Synthesis and photovoltaic properties of 2D-conjugated polymers with alkylsilyl-substituted thieno[3,2-b]thiophene conjugated side chains

2018 ◽  
Vol 57 ◽  
pp. 255-262 ◽  
Author(s):  
Tinghai Yan ◽  
Haijun Bin ◽  
Chenkai Sun ◽  
Zhi-Guo Zhang ◽  
Yongfang Li
Keyword(s):  
Conjugated Polymers ◽  
Side Chains ◽  
Photovoltaic Properties

scholarly journals Controlled steric selectivity in molecular doping towards closest-packed supramolecular conductors

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Shinya Kohno ◽  
Yu Yamashita ◽  
Naotaka Kasuya ◽  
Tsubasa Mikie ◽  
Itaru Osaka ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Steric Effects ◽  
Side Chain ◽  
Side Chains ◽  
Void Space ◽  
Alkyl Side Chains ◽  
Recent Developments ◽  
High Carrier ◽  
Molecular Doping ◽  
Steric Selectivity

Abstract Recent developments in molecular doping technologies allow extremely high carrier densities in polymeric semiconductors, exhibiting great diversity because of the unique size, conformation, and steric effect of molecular dopants. However, it is controversial how steric effects can limit the doping efficiency and to what extent dopants can be accommodated in polymers. Here, we employ two distinct conjugated polymers with different alkyl side-chain densities, where polymers are doped via anion-change, allowing greater variation in the incorporation of molecular dopants having different electrostatic potentials and shapes. We characterize the doping efficiency with regard to steric effects, considering the unique void space in the conjugated polymers. Our study reveals that doping efficiency of polymers with sparse alkyl side-chains is significantly greater than that with dense side-chains. A closest-packed supramolecule is realized with a particular combination of a sparse polymer and a large dopant, giving rise to high conductivity, air stability, and remarkably high work function. This work provides a critical insight into overcoming steric effects in molecular doping.

Synthesis and photovoltaic properties of thiophene–imide-fused thiophene alternating copolymers with different alkyl side chains

2011 ◽  
Vol 21 (33) ◽  
pp. 12454 ◽  
Author(s):  
Tomokazu Umeyama ◽  
Masaaki Oodoi ◽  
Osamu Yoshikawa ◽  
Takashi Sagawa ◽  
Susumu Yoshikawa ◽  
...  
Keyword(s):  
Side Chains ◽  
Photovoltaic Properties ◽  
Alternating Copolymers ◽  
Alkyl Side Chains

Low band gap conjugated polymers combining siloxane-terminated side chains and alkyl side chains: side-chain engineering achieving a large active layer processing window for PCE > 10% in polymer solar cells

2017 ◽  
Vol 5 (33) ◽  
pp. 17619-17631 ◽  
Author(s):  
Xuncheng Liu ◽  
Li Nian ◽  
Ke Gao ◽  
Lianjie Zhang ◽  
Lechi Qing ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Active Layer ◽  
Polymer Solar Cells ◽  
Hole Transport ◽  
Random Copolymers ◽  
Side Chain ◽  
Active Layer Thickness ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Thickness Tolerance

Side-chain random copolymers show high 3-D hole transport and offer excellent active layer thickness tolerance.

Impact of the alkyl side chain position on the photovoltaic properties of solution-processable organic molecule donor materials

2016 ◽  
Vol 4 (30) ◽  
pp. 11747-11753 ◽  
Author(s):  
J. Zhang ◽  
X. W. Zhu ◽  
C. He ◽  
H. J. Bin ◽  
L. W. Xue ◽  
...  
Keyword(s):  
Organic Molecule ◽  
Side Chain ◽  
Side Chains ◽  
Alkyl Side Chain ◽  
Photovoltaic Properties ◽  
Alkyl Side Chains ◽  
Solution Processable ◽  
New Compounds

Two new compounds with alkyl side chains at different positions have a similar structure, but exhibit different photovoltaic properties.

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