Synthesis and n‐Type Semiconducting Properties of Bis(dioxaborin) Compounds Containing a π‐Extended 2,2′‐Bithiophene Structure
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- Yohei Kojima
- Graduate School of Engineering Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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- So Sugiura
- Graduate School of Engineering Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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- Keiji Suzuki
- Graduate School of Engineering Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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- Yilihamu Yisilamu
- Graduate School of Engineering Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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- Katsuhiko Ono
- Graduate School of Engineering Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
書誌事項
- 公開日
- 2021-12-29
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/asia.202101262
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Bis(dioxaborin) compounds containing π‐conjugated systems have been studied as n‐type semiconductors for organic field‐effect transistors (OFETs). In this study, with the aim of investigating the effect of the extension of the π‐conjugation on the n‐type semiconducting properties and stability of bis(dioxaborin) compounds, we synthesized new compounds containing 2,2′‐bithiophene derivatives extended with an olefin or an acetylene spacer. The absorption maxima of the compounds containing olefin spacers were greatly red‐shifted compared with those of the original compound without a π‐spacer. The newly synthesized compounds exhibited high electron affinity, and the olefin spacers effectively reduced the on‐site Coulomb repulsion in the two‐electron reduction of the compounds. An OFET fabricated using one of these compounds having a layer‐by‐layer crystal structure exhibited n‐type semiconductor behavior with a low threshold voltage, most likely due to the small on‐site Coulomb repulsion. The electron‐transporting properties were investigated by theoretical calculations based on the Marcus theory.</jats:p>
収録刊行物
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- Chemistry – An Asian Journal
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Chemistry – An Asian Journal 17 (3), 2021-12-29
Wiley