A study of the thermoelectric properties of benzo[1,2-b:4,5-b′]dithiophene–based donor–acceptor conjugated polymers

2018 ◽  
Vol 9 (35) ◽  
pp. 4440-4447 ◽  
Author(s):  
Luhai Wang ◽  
Chengjun Pan ◽  
Zhongming Chen ◽  
Xiaoyan Zhou ◽  
Chunmei Gao ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Side Chains ◽  
Organic Thermoelectric Materials ◽  
Donor Acceptor

Three benzo[1,2-b:4,5-b′]dithiophene (BDT)-based donor–acceptor (D–A) conjugated polymers with different side chains were designed, synthesized, and investigated as organic thermoelectric materials.

scholarly journals Backbone Effects on the Thermoelectric Properties of Ultra-Small Bandgap Conjugated Polymers

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2486
Author(s):  
Dexun Xie ◽  
Jing Xiao ◽  
Quanwei Li ◽  
Tongchao Liu ◽  
Jinjia Xu ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Power Factor ◽  
Carrier Mobility ◽  
Polymeric Materials ◽  
Thermoelectric Performance ◽  
Organic Thermoelectric Materials ◽  
Higher Power ◽  
Donor Acceptor ◽  
Maximum Power Factor ◽  
Higher Carrier Mobility

Conjugated polymers with narrower bandgaps usually induce higher carrier mobility, which is vital for the improved thermoelectric performance of polymeric materials. Herein, two indacenodithiophene (IDT) based donor–acceptor (D-A) conjugated polymers (PIDT-BBT and PIDTT-BBT) were designed and synthesized, both of which exhibited low-bandgaps. PIDTT-BBT showed a more planar backbone and carrier mobility that was two orders of magnitude higher (2.74 × 10−2 cm2V−1s−1) than that of PIDT-BBT (4.52 × 10−4 cm2V−1s−1). Both exhibited excellent thermoelectric performance after doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, where PIDTT-BBT exhibited a larger conductivity (0.181 S cm−1) and a higher power factor (1.861 μW m−1 K−2) due to its higher carrier mobility. The maximum power factor of PIDTT-BBT reached 4.04 μW m−1 K−2 at 382 K. It is believed that conjugated polymers with a low bandgap are promising in the field of organic thermoelectric materials.

Tuning the Light Absorption of Donor–Acceptor Conjugated Polymers: Effects of Side Chains and ‘Spacer' Units in Thieno[3,4-b]pyrazine-Fluorene Copolymers

2015 ◽  
Vol 68 (11) ◽  
pp. 1759 ◽  
Author(s):  
Michael E. Mulholland ◽  
Kristine L. Konkol ◽  
Trent E. Anderson ◽  
Ryan L. Schwiderski ◽  
Seth C. Rasmussen
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Material Properties ◽  
Light Absorption ◽  
Photovoltaic Device ◽  
Electrochemical Characterization ◽  
Side Chains ◽  
Electronic And Optical Properties ◽  
Donor Acceptor

Four donor–acceptor (D-A) copolymers of 2,3-difunctionalized thieno[3,4-b]pyrazine (TP) and 9,9-dioctylfluorene were prepared in order to illustrate the ability to tune the electronic and optical properties of TP-based D-A polymers by the choice of side chains on the TP unit. In addition, analogous polymers were prepared with and without thiophene spacer units in order to allow discussion of their effect on the material properties. This combination of effects allowed tuning of the band gap over the range of 1.6–2.1 eV. Full optical and electrochemical characterization is reported for all materials, as well as initial photovoltaic device data for representative materials.

The effect of the backbone structure on the thermoelectric properties of donor–acceptor conjugated polymers

2017 ◽  
Vol 8 (32) ◽  
pp. 4644-4650 ◽  
Author(s):  
Luhai Wang ◽  
Chengjun Pan ◽  
Ansheng Liang ◽  
Xiaoyan Zhou ◽  
Wenqiao Zhou ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Properties ◽  
Donor Acceptor ◽  
Backbone Structure

This work illustrated a relationship between backbone structure and thermoelectric properties through a study of three donor–acceptor (D–A)-structured conjugated polymers.

A stability study of polymer solar cells using conjugated polymers with different donor or acceptor side chain patterns

2016 ◽  
Vol 4 (42) ◽  
pp. 16677-16689 ◽  
Author(s):  
Ilona M. Heckler ◽  
Jurgen Kesters ◽  
Maxime Defour ◽  
Huguette Penxten ◽  
Bruno Van Mele ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Polymer Solar Cells ◽  
Stability Study ◽  
Side Chain ◽  
Side Chains ◽  
Acceptor Side ◽  
Donor Acceptor

The position and nature of side chains in the donor–acceptor copolymer were investigated in terms of stability in polymer solar cells.

Doped thieno[3,4-b]thiophene -based copolymers for p-type organic thermoelectric materials

2021 ◽  
Author(s):  
Sicheng Wu ◽  
Weilong Xing ◽  
Mengsu Zhu ◽  
Ye Zou ◽  
Yimeng Sun ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Materials ◽  
Charge Mobility ◽  
Organic Thermoelectric Materials ◽  
Thiophene Derivatives ◽  
P Type

In this work, two conjugated polymers named PTbTTVT and PTbTTVT-F were obtained by TbT (thieno[3,4-b]thiophene) derivatives and linker TVT (1,2-bis(3-tetradecylthiophen-2-yl)ethene) copolymerization. PTbTTVT showed well orientation and better charge mobility, while...

Wide bandgap donor-acceptor conjugated polymers with alkylthiophene as side chains for high-performance non-fullerene polymer solar cells

2019 ◽  
Vol 65 ◽  
pp. 31-38 ◽  
Author(s):  
Mu He ◽  
Weili Li ◽  
Hongkun Tian ◽  
Hui Tong ◽  
Jidong Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Wide Bandgap ◽  
Side Chains ◽  
Donor Acceptor

scholarly journals Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 963
Author(s):  
De-Xun Xie ◽  
Tong-Chao Liu ◽  
Jing Xiao ◽  
Jing-Kun Fang ◽  
Cheng-Jun Pan ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Thermoelectric Properties ◽  
Conjugated Polymer ◽  
High Performance ◽  
Charge Carriers ◽  
Side Chain ◽  
Side Chains ◽  
Bulky Substituent ◽  
P Type

A p-type thermoelectric conjugated polymer based on indacenodithiophene and benzothiadiazole is designed and synthesized by replacing normal aliphatic side chains (P1) with conjugated aromatic benzene substituents (P2). The introduced bulky substituent on P2 is detrimental to form the intensified packing of polymers, therefore, it hinders the efficient transporting of the charge carriers, eventually resulting in a lower conductivity compared to that of the polymers bearing aliphatic side chains (P1). These results reveal that the modification of side chains on conjugated polymers is crucial to rationally designed thermoelectric polymers with high performance.

Doping of donor-acceptor polymers with long side chains via solution mixing for advancing thermoelectric properties

Nano Energy ◽  
2019 ◽  
Vol 58 ◽  
pp. 585-595 ◽  
Author(s):  
Eui Hyun Suh ◽  
Yong Jin Jeong ◽  
Jong Gyu Oh ◽  
Kyumin Lee ◽  
Jaemin Jung ◽  
...  
Keyword(s):  
Thermoelectric Properties ◽  
Side Chains ◽  
Donor Acceptor

Interface-Located Photothermoelectric Effect of Organic Thermoelectric Materials in Enabling NIR Detection

2015 ◽  
Vol 7 (17) ◽  
pp. 8968-8973 ◽  
Author(s):  
Dazhen Huang ◽  
Ye Zou ◽  
Fei Jiao ◽  
Fengjiao Zhang ◽  
Yaping Zang ◽  
...  
Keyword(s):  
Thermoelectric Materials ◽  
Organic Thermoelectric Materials
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