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Femtosecond transient absorption spectroscopy of laser-ablated graphite and reduced graphene oxide for optical switching behavior
https://tokushima-u.repo.nii.ac.jp/records/2008602
https://tokushima-u.repo.nii.ac.jp/records/200860204509e03-e6f5-4cfa-8cdb-124509a0a2d5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
omx_2_100026.pdf (1.18 MB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||||||
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| 公開日 | 2021-04-21 | |||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||
| 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 | |||||||||||||||||||||
| 出版社版DOI | ||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.omx.2019.100026 | |||||||||||||||||||||
| 関連名称 | 10.1016/j.omx.2019.100026 | |||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Femtosecond transient absorption spectroscopy of laser-ablated graphite and reduced graphene oxide for optical switching behavior | |||||||||||||||||||||
| 著者 |
Bhamare, Yatin Madhukar
× Bhamare, Yatin Madhukar
× コインカー, パンカジ
WEKO
275
× 古部, 昭広
WEKO
763
× More, M.A.
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| 抄録 | ||||||||||||||||||||||
| 内容記述 | Carbon based materials are considered as a rewarding contestant for optical devices due to its novel properties. In this study, graphite is laser-ablated and different analytical methods such as XRD and Raman spectroscopy are used to evaluate the crystalline nature. In XRD, it indicates the decreased intensity after laser ablation but no change in peak positions resulted as graphite is very strong and hard material. Scanning electron microscopy (SEM) used to evaluate structural characteristics shows the overlapping layered structure after ablation. Reduced graphene oxide (rGO) is prepared by using modified Hummers' method and reduced it by thermal reduction method. UV–Vis spectra confirmed the peaks of graphite and rGO at 274 nm and 267 nm, respectively. To study the carrier relaxation dynamics of graphite and rGO, ultrafast Visible-pump/NIR-probe femtosecond transient absorption spectroscopy was used. Carrier relaxation occurred between 260 and 309 fs even after laser ablation damage, which is useful for future application of optical switching under high laser repetition. | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | Laser ablation | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | Transient absorption spectroscopy | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | Optical switching | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | Ultrafast spectroscopy | |||||||||||||||||||||
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| 主題 | Graphite | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 主題 | Graphene | |||||||||||||||||||||
| 書誌情報 |
en : Optical Materials: X 巻 2, p. 100026, 発行日 2019-07-04 |
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| 収録物ID | ||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||
| 収録物識別子 | 25901478 | |||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||
| 権利情報 | This is an open access article under the CC BY license(http://creativecommons.org/licenses/by/4.0/). | |||||||||||||||||||||
| EID | ||||||||||||||||||||||
| 識別子 | 355222 | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
