Aldol condensation-enabled acceptor-acceptor type bithiophene imide polymer semiconductors for n-type field-effect transistors
While the development of high-performing n-type polymer semiconductors remains a challenge, the involving of costly transition-metal catalysts and even toxic reagents during the preparation of these materials might also cause serious environmental issues. Herein, by devising two new aldehyde-functionalized bithiophene imide (BTI)-type building blocks, we designed and synthesized two acceptor-acceptor type n-type polymers, BTI-BD and BTI2-BD, on the basis of an environmentally benign, transition metal-free and thus cost-effective aldol condensation. The resulting polymers exhibited planar and rigid backbone conformations and low-lying LUMO energy levels close to −4.0 eV, thus leading to unipolar n-type tranport character with a highest electron mobility of 1.35 × 10 cm V s in organic field-effect transistors for the BTI2-BD polymer which features a higher molecular ordering in solid state. Our results demonstrate that the aldol polycondensation strategy could serve as a cheaper and more ecofriendly alternative to the convential transition metal-catalyzed cross-coupling reactions for constructing n-type acceptor-acceptor polymers with unipolar n-type charge transport characteristics.
National Natural Science Foundation of China["52273171","21875055"] ; Guangdong Basic and Applied Basic Research Foundation ; Shenzhen Research Foundation Project ; null[2022A1515010935] ; null[GXWD20201230155427003]
|WOS Research Area|
Chemistry ; Engineering ; Materials Science
Chemistry, Applied ; Engineering, Chemical ; Materials Science, Textiles
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Materials Science and Engineering|
1.Shenzhen Key Laboratory of Advanced Materials,School of Materials Science and Engineering,Harbin Institute of Technology,Shenzhen,Guangdong,518055,China
2.State Key Laboratory of Chemo/Biosensing and Chemometrics,College of Chemistry and Chemical Engineering,Hunan University,Changsha,Hunan,410082,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology SUSTech,Shenzhen,No. 1088, Xueyuan Road, Guangdong,518055,China
4.Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Department of Chemical Engineering and Technology,Changzhou University,Changzhou,Jiangsu,213164,China
5.Research Institute for Natural Sciences,Department of Chemistry,Korea University,Seoul,02841,South Korea
|First Author Affilication||Department of Materials Science and Engineering|
Wang，Dong,Hou，Yongxin,Yang，Kun,et al. Aldol condensation-enabled acceptor-acceptor type bithiophene imide polymer semiconductors for n-type field-effect transistors[J]. DYES AND PIGMENTS,2023,212.
Wang，Dong.,Hou，Yongxin.,Yang，Kun.,Wang，Yimei.,Liao，Qiaogan.,...&Guo，Xugang.(2023).Aldol condensation-enabled acceptor-acceptor type bithiophene imide polymer semiconductors for n-type field-effect transistors.DYES AND PIGMENTS,212.
Wang，Dong,et al."Aldol condensation-enabled acceptor-acceptor type bithiophene imide polymer semiconductors for n-type field-effect transistors".DYES AND PIGMENTS 212(2023).
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