RESONANCE RAMAN EFFECT IN SINGLE WALL CARBON NANOTUBES

单壁碳纳米管中的共振拉曼效应

• 批准号: 6314170
• 负责人: MARCOS PIMENTA
• 金额: $ 1.38万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6314170
• 关键词: biological products; biomaterials; biomedical equipment development; biomedical resource

The experiments employ NIR, visible, and UV lasers to map the resonance Raman profile of carbon nanotubes. The goal is to provide experimental verification of the theoretical 1-D electronic behavior and the vibrational structure predicted for single wall nanotubes. A striking result is the confirmed dependence of the positions of some Raman bands with respect to the laser wavelength, due to the nanotube diameter dependence of both the phonon modes and the electronic energy gap, and the resultant electron-phonon coupling.

这些实验使用近红外、可见光和紫外线激光来绘制 碳纳米管的共振拉曼光谱。我们的目标是提供 理论一维电子行为的实验验证 预测了单壁纳米管的振动结构。一个 令人震惊的结果是，一些人的立场得到了确认 由于纳米管，相对于激光波长的拉曼光谱 声子模和电子能量与直径的关系 以及由此产生的电子-声子耦合。