中文版 | English
Title

Acceptor-acceptor type polymers based on cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole for high-efficiency n-type organic thermoelectrics

Author
Corresponding AuthorFeng,Kui; Guo,Xugang
Publication Years
2022
DOI
Source Title
ISSN
0032-3896
EISSN
1349-0540
Volume55Pages:507–515
Abstract

The development of n-type organic thermoelectrics (OTEs) falls significantly behind that of their p-type counterparts. Herein, two acceptor-acceptor (A-A) polymers, PDCNBT-DPP and PDCNBSe-DPP, were generated by combining strongly electron-deficient cyano-functionalized benzochalcogenadiazole and diketopyrrolopyrrole building blocks, both of which acted as universal moieties for high-mobility polymers. The A-A polymers showed good solubility, low-lying lowest unoccupied molecular orbital (LUMO) energy levels, and narrow bandgaps; thus, predominant n-type characteristics were achieved in organic thin-film transistors. After n-type doping, both polymers exhibited n-type performance, in which the highest conductivity was 12.36 S cm and a large power factor of 9.22 μW m K was obtained in OTE devices. Our study demonstrated that benzochalcogenadiazole is an excellent building block for developing n-type OTE materials. In addition, the A-A strategy provides an avenue for constructing new types of polymers for high-power n-type OTE materials.

URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
WOS Accession No
WOS:000865902800001
ESI Research Field
CHEMISTRY
Scopus EID
2-s2.0-85139675423
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/406619
DepartmentDepartment of Materials Science and Engineering
前沿与交叉科学研究院
Affiliation
1.Department of Materials Science and Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China
2.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China
3.Department of Chemistry,Korea University,Seoul,136-713,South Korea
4.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Southern University of Science and Technology (SUSTech),Shenzhen,Guangdong,518055,China
First Author AffilicationDepartment of Materials Science and Engineering
Corresponding Author AffilicationDepartment of Materials Science and Engineering;  Academy for Advanced Interdisciplinary Studies;  Southern University of Science and Technology
First Author's First AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Wang,Junwei,Feng,Kui,Jeong,Sang Young,et al. Acceptor-acceptor type polymers based on cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole for high-efficiency n-type organic thermoelectrics[J]. POLYMER JOURNAL,2022,55:507–515.
APA
Wang,Junwei.,Feng,Kui.,Jeong,Sang Young.,Liu,Bin.,Wang,Yimei.,...&Guo,Xugang.(2022).Acceptor-acceptor type polymers based on cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole for high-efficiency n-type organic thermoelectrics.POLYMER JOURNAL,55,507–515.
MLA
Wang,Junwei,et al."Acceptor-acceptor type polymers based on cyano-substituted benzochalcogenadiazole and diketopyrrolopyrrole for high-efficiency n-type organic thermoelectrics".POLYMER JOURNAL 55(2022):507–515.
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