| 研究課題/領域番号 |
22KF0394
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| 補助金の研究課題番号 |
21F21033 (2021-2022)
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 基金 (2023)
補助金 (2021-2022) |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分32020:機能物性化学関連
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| 研究機関 | 国立研究開発法人理化学研究所 |
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研究代表者 |
金 有洙 国立研究開発法人理化学研究所, 開拓研究本部, 主任研究員 (50373296)
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| 研究分担者 |
JACULBIA RAFAEL 国立研究開発法人理化学研究所, 開拓研究本部, 外国人特別研究員
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| 研究期間 (年度) |
2023-03-08 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
2,300千円 (直接経費: 2,300千円)
2023年度: 200千円 (直接経費: 200千円)
2022年度: 1,100千円 (直接経費: 1,100千円)
2021年度: 1,000千円 (直接経費: 1,000千円)
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| キーワード | graphene / STM / Raman spectroscopy / defect / strain / tip enhancement |
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| 研究開始時の研究の概要 |
This research will concentrate mainly on the development of a new facility that has not been realized previously. This involves extending the capability of the host laboratory’s STM based tip-enhanced Raman spectroscopy setup to allow for investigating THz-Raman modes of graphene.
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| 研究実績の概要 |
Graphene is one of the most promising two-dimensional material because of its unique properties. Here, we use STM-based tip enhanced Raman spectroscopy (TERS) to investigate graphene samples. Samples were grown on Au(111) substrates using chemical vapour deposition. Then they were studied using STM imaging, scanning tunneling spectroscopy and STM-TERS. The STM imaging showed Moire patterns and honeycomb structures which are signatures of graphene. The STM-TERS spectra showed the D, 2D, 2D’, and G-band of graphene. Both STS and STM-TERS mapping across an impurity on the sample was performed. We found that the intensity map of the D peak corresponds well to the STS map at around the Fermi level.
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