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Ultrahigh mobility and efficient charge injection in monolayer organic thin-film transistors on boron nitride
https://oist.repo.nii.ac.jp/records/441
https://oist.repo.nii.ac.jp/records/4412c7450d1-afcd-4424-b139-ac39dc9491c5
名前 / ファイル | ライセンス | アクション |
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e1701186.full (1.4 MB)
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Creative Commons Attribution-NonCommercial 4.0 International
https://creativecommons.org/licenses/by-nc/4.0/ |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-07-24 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Ultrahigh mobility and efficient charge injection in monolayer organic thin-film transistors on boron nitride | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
He, Daowei
× He, Daowei× Qiao, Jingsi× Zhang, Linglong× Wang, Junya× Lan, Tu× Qian, Jun× Li, Yun× Shi, Yi× Chai, Yang× Lan, Wei× Ono, Luis K.× Qi, Yabing× Xu, Jian-Bin× Ji, Wei× Wang, Xinran |
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書誌情報 |
en : Science Advances 巻 3, 号 9, p. e1701186, 発行日 2017-09-06 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Organic thin-film transistors (OTFTs) with high mobility and low contact resistance have been actively pursued as building blocks for low-cost organic electronics. In conventional solution-processed or vacuum-deposited OTFTs, due to interfacial defects and traps, the organic film has to reach a certain thickness for efficient charge transport. Using an ultimate monolayer of 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) molecules as an OTFT channel, we demonstrate remarkable electrical characteristics, including intrinsic hole mobility over 30 cm2/Vs, Ohmic contact with 100 Ω · cm resistance, and band-like transport down to 150 K. Compared to conventional OTFTs, the main advantage of a monolayer channel is the direct, nondisruptive contact between the charge transport layer and metal leads, a feature that is vital for achieving low contact resistance and current saturation voltage. On the other hand, bilayer and thicker C8-BTBT OTFTs exhibit strong Schottky contact and much higher contact resistance but can be improved by inserting a doped graphene buffer layer. Our results suggest that highly crystalline molecular monolayers are promising form factors to build high-performance OTFTs and investigate device physics. They also allow us to precisely model how the molecular packing changes the transport and contact properties. | |||||
出版者 | ||||||
出版者 | American Association for the Advancement of Science | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2375-2548 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/28913429 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1126/sciadv.1701186 | |||||
権利 | ||||||
権利情報 | © 2017 The Author(s), some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://advances.sciencemag.org/content/3/9/e1701186 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |