ICCAS OpenIR
Low Band Gap Donor-Acceptor Conjugated Polymers with Indanone-Condensed Thiadiazolo[3,4-g]quinoxaline Acceptors
Chen, Huajie; Cai, Guosheng; Guo, Ankang; Zhao, Zhiyuan; Kuang, Junhua; Zheng, Liping; Zhao, Lingli; Chen, Jinyang; Guo, Yunlong; Liu, Yunqi
2019-08-27
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume52Issue:16Pages:6149-6159
AbstractDonor-acceptor (D-A) conjugated polymers with the band gaps below 1.0 eV can exhibit unique near-infrared (NIR) activities and multiple functional applications. However, it is still a big challenge to develop such materials because of the scarcity of effective synthetic strategies and strong acceptor building blocks. Herein, we report the design, synthesis, and application of two novel indanone-condensed thiadiazolo[3,4-g]quinoxaline (TQ) acceptor units, which display high electron affinities and low-lying lowest unoccupied molecular orbital (LUMO) levels because of the incorporation of auxiliary electron-deficient carbonyl or cyano groups into the TQ core. Moreover, two low band gap D-A conjugated polymers are synthesized via Stille condensation reactions between the newly developed TQ acceptor units and 2,5-bis(3-(2-decyltetradecyl)thiophen-2-yothieno-[3,2-b]thiophene donor units. The effect of the substitute groups (carbonyl and cyano groups) on the geometry, optical property, electronic structure [highest occupied molecular orbital (HOMO)/LUMO levels and band gap], film organization, and charge transport of the polymers are discussed carefully. The resulting polymers exhibit very broad NIR absorptions extended to around 1880 nm, deep-lying LUMO energy levels (< -3.90 eV), and low optical band gaps (similar to 0.66 eV). Investigation of field-effect transistor properties indicates that both polymers show a well- balanced ambipolar transport behavior, affording the hole/electron mobilities of 1.3 X 10(-3) and 2.0 X 10(-3) cm(2 )V(-1) s(-1), respectively. These results indicate that both newly developed TQ acceptors are excellent building blocks for the development of novel pi-conjugated systems with low band gap and high NIR activity.
DOI10.1021/acs.macromol.9b00834
Indexed BySCI
Language英语
WOS IDWOS:000483437500012
EI Accession Number1520-5835
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82636
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, Huajie,Cai, Guosheng,Guo, Ankang,et al. Low Band Gap Donor-Acceptor Conjugated Polymers with Indanone-Condensed Thiadiazolo[3,4-g]quinoxaline Acceptors[J]. MACROMOLECULES,2019,52(16):6149-6159.
APA Chen, Huajie.,Cai, Guosheng.,Guo, Ankang.,Zhao, Zhiyuan.,Kuang, Junhua.,...&Liu, Yunqi.(2019).Low Band Gap Donor-Acceptor Conjugated Polymers with Indanone-Condensed Thiadiazolo[3,4-g]quinoxaline Acceptors.MACROMOLECULES,52(16),6149-6159.
MLA Chen, Huajie,et al."Low Band Gap Donor-Acceptor Conjugated Polymers with Indanone-Condensed Thiadiazolo[3,4-g]quinoxaline Acceptors".MACROMOLECULES 52.16(2019):6149-6159.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Huajie]'s Articles
[Cai, Guosheng]'s Articles
[Guo, Ankang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Huajie]'s Articles
[Cai, Guosheng]'s Articles
[Guo, Ankang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Huajie]'s Articles
[Cai, Guosheng]'s Articles
[Guo, Ankang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.