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アイテム
Electric field and oxygen concentration-dependent transport properties of nano-graphene oxide
http://hdl.handle.net/10228/00007391
http://hdl.handle.net/10228/00007391d6aa150e-d800-46f8-9e48-2e3f9ae6eb43
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
1.5116774.pdf (1.6 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||
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| 公開日 | 2019-09-12 | |||||
| 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 | |||||
| タイトル | ||||||
| タイトル | Electric field and oxygen concentration-dependent transport properties of nano-graphene oxide | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 著者 |
孫, 勇
× 孫, 勇× Kirimoto, Kenta× Hattori, Hayami× Kitamura, Yuto× Fan, Enda× Onishi, Koichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Electrical transport properties of the nano-graphene oxide were investigated by measuring current-voltage characteristics in the wide temperature range of 15 K∼450 K. The n-GO is composed of nanometer-sized intact graphene-like sp2 domains embedded in the sp3 matrix which acts as a charge transport barrier between the highly conductive sp2 domains. The oxygen in the n-GO has the concentration of 4.43 at% in the form of oxygen functional groups. Below the conduction band, four discontinuous localized states with the activation energies of 1.92 meV, 3.27 meV, 5.54 meV, and 6.58 meV were observed. These activation energies decrease with decreasing oxygen concentration and increasing external electric field in the n-GO material. Moreover, we found that the direct tunneling of charge carrier through the sp3 barrier was a dominant transport mechanism for the n-GO material. Also, unlike the activation energy of charge carrier, the transport barrier was independent of both the concentration of the oxygen functional groups and external electric field. The transport barrier was mainly determined by insulation property of the sp3 structure. | |||||
| 書誌情報 |
AIP Advances 巻 9, 号 9, p. 095010-1-095010-7, 発行日 2019-09-10 |
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| 出版社 | ||||||
| 出版者 | AIP Publishing | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/1.5116774 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 549 | |||||
| 著作権関連情報 | ||||||
| 権利情報 | Copyright (c) 2019 Author(s). | |||||
| 著作権関連情報 | ||||||
| 権利情報 | The following article has been submitted to/accepted by AIP Advances. After it is published, it will be found at https://aip.scitation.org/journal/adv. | |||||
| 著作権関連情報 | ||||||
| 権利情報 | Creative Commons Attribution (CC BY) license | |||||
| 著作権関連情報 | ||||||
| 権利情報 | http://creativecommons.org/licenses/by/4.0/ | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 査読の有無 | ||||||
| 値 | yes | |||||
| 研究者情報 | ||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/174_ja.html | |||||
| 論文ID（連携） | ||||||
| 値 | 10345711 | |||||
| 連携ID | ||||||
| 値 | 7888 | |||||
