One Nanometer Scale Chemical and Structural Analysis of Carbon Nanotubes by STM Tip Enhanced Raman Imaging in Ambient Condition.

在环境条件下通过 STM 尖端增强拉曼成像对碳纳米管进行一纳米级化学和结构分析。

• 批准号: 23710116
• 负责人: CHEN Chi
• 金额: $ 2.75万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23710116/
• 关键词: Tip enhanced Raman spectroscopy; Scanning tunneling microscopy; Carbon nanotube; Tip enhanced Raman; Chemical imaging; STM; 局在プラズモン; 金属ナノロッド; 走査型トンネル顕微鏡; トンネル発光

Scanning tunneling microscope (STM) combined with near field Raman spectroscopy is constructed in this research for hybrid imaging and chemical analysis. SWNT is selected as our sample for tip enhanced Raman spectroscopy (TERS) because it has very strong Raman signal and clear morphology. We obtained spectrally resolved TERS images at different Raman modes with 1.7 nm spatial resolution. For the first time, the local defect origin of D band, diameter factor of resonance condition, and tube bundling effect are all visualized in real space. We are so exciting to have such high resolution tool and it may change the views and ways of analytical chemistry as well as optics and spectroscopy. This opens new possibilities to investigate nanoscale physics, chemistry, and biology.

本研究将扫描隧道显微镜(STM)与近场拉曼光谱相结合，用于混合成像和化学分析。选择单壁碳纳米管作为尖端增强拉曼光谱(TERS)的样品，是因为它具有很强的拉曼信号和清晰的形貌。我们获得了1.7 nm空间分辨率的不同拉曼模式下的光谱分辨TERS图像。首次将D带的局部缺陷起源、共振条件的直径因子、管束效应等都在真实空间中可视化。我们对拥有如此高分辨率的工具感到非常兴奋，它可能会改变分析化学以及光学和光谱学的观点和方法。这为研究纳米尺度的物理、化学和生物学提供了新的可能性。

项目成果

Tip Enhanced Raman Spectroscopy Base on A Scanning Tunneling Microscope

基于扫描隧道显微镜的尖端增强拉曼光谱

• 作者: Chi Chen;N. Hayazawa;and S. Kawata
• 通讯作者: and S. Kawata

Nanometers Resolution Structural Analysis of Carbon Nanotube by Tip Enhanced Raman Imaging

通过尖端增强拉曼成像对碳纳米管进行纳米分辨率结构分析

• 发表时间: 2013
• 作者: 川村敦弘;隅野慶子;大西智美;芝英一朗;田口翔悟;山田裕久;片倉勝己;Chi Chen
• 通讯作者: Chi Chen

Structural Analysis of Carbon Nanotubes by STM Tip Enhanced Raman Imaging with a few Nanometers Resolution

通过几纳米分辨率的 STM 尖端增强拉曼成像对碳纳米管进行结构分析

• 发表时间: 2013
• 作者: Norio Okabayashi;Kosuke Maeda;Taro Muraki;Daisuke Tanaka;Masanori Sakamoto;Toshiharu Teranishi;and Yutaka Majima;Hirohisa YAMADA;Chi Chen
• 通讯作者: Chi Chen