Title | Regioisomeric Cyanated Polythiophenes Bearing Polar Side Chains for n-Type Organic Thermoelectrics |
Author | |
Corresponding Author | Yang, Kun; Guo, Xugang |
Publication Years | 2023-03-28
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DOI | |
Source Title | |
ISSN | 0024-9297
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EISSN | 1520-5835
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Volume | 56Issue:6 |
Abstract | The development of n-type polymers with high thermoelectric performance remains a major challenge for organic thermoelectrics. Herein, by devising two new isomeric cyano-functionalized bithiophene building blocks bearing polar side chains, we report two novel donor-acceptor-configurated n-type polythiophene polymers (BTOgCN-FT and BTCNOg-FT) with regiochemically tuned intramolecular S center dot center dot center dot O noncovalent interactions (INIs) and cyanation patterns for n-type thermoelectric application. The results show that cyanation furnished low-lying LUMO energy levels approaching that of the benchmark n-type polymer N2200 for both polymers (similar to-3.90 eV), which combine with their polar side chain-enabled high dopant miscibility, leading to efficient n-doping efficiencies. Detailed theoretical and experimental studies also suggest that BTOgCN-FT exhibited a more planar backbone conformation and more ordered interchain packing in film state, thus yielding higher electrical values than BTCNOg-FT. Therefore, the polymer BTOgCN-FT eventually displays an optimal power factor (PF) value of 2.77 mu W m-1 K-2, which is higher than that of BTCNOg-FT (1.50 mu W m-1 K-2) and also largely outperforming that of the thoroughly investigated and optimized polymer N2200 (typical PF value of 10-2 mu W m-1 K-2). Our work not only presents two novel structurally simple and isomeric electron-accepting building blocks but also offers valuable structure-property correlations for the future design of highperformance n-type thermoelectric materials. |
URL | [Source Record] |
Indexed By | |
Language | English
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Important Publications | NI Journal Papers
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SUSTech Authorship | First
; Corresponding
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Funding Project | National Natural Science Foundation of China[52173171]
; Guangdong Basic and Applied Basic Research Foundation["JCYJ20220818100617037","2022A1515010935"]
; Shenzhen Science and Technology Innovation Commission[2021M701550]
; China Postdoctoral Science Foundation[2019R1A6A1A11044070]
; National Research Foundation of Korea[22005133]
; null[2022A1515110635]
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WOS Research Area | Polymer Science
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WOS Subject | Polymer Science
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WOS Accession No | WOS:000953138200001
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Publisher | |
ESI Research Field | CHEMISTRY
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Data Source | Web of Science
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Citation statistics |
Cited Times [WOS]:1
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Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/523976 |
Department | Department of Materials Science and Engineering |
Affiliation | 1.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China 2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China 3.Korea Univ, Res Inst Nat Sci, Dept Chem, Seoul 02841, South Korea 4.Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China |
First Author Affilication | Department of Materials Science and Engineering |
Corresponding Author Affilication | Department of Materials Science and Engineering |
First Author's First Affilication | Department of Materials Science and Engineering |
Recommended Citation GB/T 7714 |
Li, Jianfeng,Yang, Kun,Wang, Dong,et al. Regioisomeric Cyanated Polythiophenes Bearing Polar Side Chains for n-Type Organic Thermoelectrics[J]. MACROMOLECULES,2023,56(6).
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APA |
Li, Jianfeng.,Yang, Kun.,Wang, Dong.,Liu, Bin.,Wang, Yimei.,...&Guo, Xugang.(2023).Regioisomeric Cyanated Polythiophenes Bearing Polar Side Chains for n-Type Organic Thermoelectrics.MACROMOLECULES,56(6).
|
MLA |
Li, Jianfeng,et al."Regioisomeric Cyanated Polythiophenes Bearing Polar Side Chains for n-Type Organic Thermoelectrics".MACROMOLECULES 56.6(2023).
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