Quinoidal Small Molecule Containing Ring-Extended Termini for Organic Field-Effect Transistors
| العنوان: | Quinoidal Small Molecule Containing Ring-Extended Termini for Organic Field-Effect Transistors |
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| المؤلفون: | Jong-Jin Park, Yoonjung Mok, Yeonsu Choi, Yina Moon, Dong-Yu Kim, Yunseul Kim |
| المصدر: | ACS Omega, Vol 6, Iss 41, Pp 27305-27314 (2021) ACS Omega |
| بيانات النشر: | American Chemical Society, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Electron mobility, Organic field-effect transistor, Materials science, Band gap, General Chemical Engineering, Benzothiophene, General Chemistry, Article, Organic semiconductor, chemistry.chemical_compound, Crystallography, Delocalized electron, Chemistry, chemistry, Thiophene, Molecule, QD1-999 |
| الوصف: | In this work, we synthesized and characterized two quinoidal small molecules based on benzothiophene modified and original isatin terminal units, benzothiophene quinoidal thiophene (BzTQuT) and quinoidal thiophene (QuT), respectively, to investigate the effect of introducing a fused ring into the termini of quinoidal molecules. Extending the terminal unit of the quinoidal molecule affected the extension of π-electron delocalization and decreased the bond length alternation, which led to the downshifting of the collective Raman band and dramatically lowering the band gap. Organic field-effect transistor (OFET) devices in neat BzTQuT films showed p-type transport behavior with low hole mobility, which was ascribed to the unsuitable film morphology for charge transport. By blending with an amorphous insulating polymer, polystyrene, and poly(2-vinylnaphthalene), an OFET based on a BzTQuT film annealed at 150 °C exhibited improved mobility up to 0.09 cm2 V–1 s–1. This work successfully demonstrated that the extension of terminal groups into the quinoidal structure should be an effective strategy for constructing narrow band gap and high charge transporting organic semiconductors. |
| اللغة: | English |
| تدمد: | 2470-1343 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18ec8a7c2ddd2086104aca379fe8be43 https://doaj.org/article/9158dcad184d48788bee86634f051e8e |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....18ec8a7c2ddd2086104aca379fe8be43 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 24701343 |
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