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Regioregular, yet ductile and amorphous indacenodithiophene-based polymers with high-mobility for stretchable plastic transistors
- Title
- Regioregular, yet ductile and amorphous indacenodithiophene-based polymers with high-mobility for stretchable plastic transistors
- Authors
- Cho Y.; Park S.; Jeong S.; Yang H.; Lee B.; Lee S.M.; Lee B.H.; Yang C.
- Ewha Authors
- 이병훈
- SCOPUS Author ID
- 이병훈
- Issue Date
- 2021
- Journal Title
- Journal of Materials Chemistry C
- ISSN
- 2050-7534
- Citation
- Journal of Materials Chemistry C vol. 9, no. 30, pp. 9670 - 9682
- Publisher
- Royal Society of Chemistry
- Indexed
- SCOPUS
- Document Type
- Article
- Abstract
- In the past decade, various high-performing π-conjugated polymers based on axisymmetric cyclopentadithiophene (CDT) and centrosymmetric indacenodithiophene (IDT) units have been thoroughly studied for use in organic field-effect transistors. However, no comparative set of data between CDT- and IDT-based polymers is available with a focus on relevant change in optoelectronic and morphological properties. Herein, we report the synthesis and characterization of four regioregular, well-defined donor-acceptor polymers (P1-P4), comprising different compositions of CDT and IDT donors in conjugation with the asymmetric 5-fluoro-2,1,3-benzothiadiazole acceptor that is precisely oriented in the regular pattern along the backbone. Morphological analyses of the above polymer series show that exclusive CDT donor-containingP1is semicrystalline, whereas the others (IDT donor-containing ones) are near-amorphous in nature. Comparatively, IDT donor-containing polymers have superior hole mobilities; in particular, exclusive IDT donor-containing polymerP4offers a high mobility of 1.67 cm2V−1s−1. In addition, the near-amorphous characteristics render the IDT donor-containing polymer films highly ductile and stretchable. Such superior features, which are associated with excellent charge transport and ductility, demonstrate a promising possibility for application in viable stretchable electronics. © The Royal Society of Chemistry 2021.
- DOI
- 10.1039/d1tc01984h
- Appears in Collections:
- 공과대학 > 화공신소재공학과 > Journal papers
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