Time-Resolved Tunneling Electron-Induced Anti-Stokes Raman Spectroscopy of Interface Aggregate
界面聚集体的时间分辨隧道电子诱导反斯托克斯拉曼光谱
基本信息
- 批准号:16072203
- 负责人:
- 金额:$ 60.67万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research on Priority Areas
- 财政年份:2004
- 资助国家:日本
- 起止时间:2004 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project has aimed to improve spatial resolution of Raman and luminescence spectroscopy. A variety of samples such as carbon nanotubes, gold-metal nano triangles, molecular aggregates were adsorbed at the surfaces of graphite or indium tin oxide plates. The instruments for these measurements were designed and built up in the laboratory. Tunneling probes were made with the electro-chemical etching of silver/copper metal alloy wires or chemical coating of silver metal on electro-chemically sharpened tungsten wires. We have found that the spatial resolution of Raman spectroscopy was improved to be in the range of several tens of nanometer when nanotubes were measured ; however, the topographical images did not always correspond with the spectral images. This deviation is considered to be due to differences in the spaces where the plasmonic enhancement takes place and the tunneling current flows. Photoluminescence of cadmium serenade quantum dots on indium tin oxide plates showed significant dependence on the distance between the quantum dots and tunneling probes with a nanometer precision. Gold nano triangles adsorbed on indium tin oxide surfaces were found to give good atomic-flat surfaces for scanning tunneling microscopy as well as to give semi-transparent substrates for inverse-type optical microscopy. Moreover, we found that some parts of gold nano triangles emitted luminescence only by approaching tunneling probes. These results are expected to contribute the development of high spatial resolution spectroscopy for the nano world.
本项目旨在提高拉曼和发光光谱的空间分辨率。将碳纳米管、金-金属纳米三角形、分子聚集体等样品吸附在石墨或氧化铟锡表面。这些测量的仪器是在实验室里设计和制造的。采用电化学腐蚀银/铜合金丝或在电化学磨尖钨丝上化学镀银金属的方法制备了钨探针。我们发现,当测量纳米管时,拉曼光谱的空间分辨率提高到几十纳米的范围内,然而,形貌图像并不总是与光谱图像相对应。这种偏差被认为是由于等离子体增强发生的空间和隧穿电流流动的差异。铟锡氧化物板上的镉小夜曲量子点的光致发光显示出量子点和隧道探针之间的距离的纳米精度显着依赖。金纳米三角形吸附在氧化铟锡表面上,被发现给扫描隧道显微镜良好的原子平坦的表面,以及给半透明衬底的反型光学显微镜。此外,我们还发现部分金纳米三角形只有在接近隧道探针时才能发光。这些结果有望有助于纳米世界的高空间分辨率光谱学的发展。
项目成果
期刊论文数量(131)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Laser-induced Phase Separation and Its Application to Chemical Reactions
激光诱导相分离及其在化学反应中的应用
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:M. Kasuya;S. Kajimoto;T. Oori;J. Hobley;K. Hatanaka;H. Fukumura
- 通讯作者:H. Fukumura
"Low-Coordinated Surface Ions as Active Sites of Oxide Catalysts : A Theoretical MINDO/3, ab Initio and DFT Studies" (Invited)
“低配位表面离子作为氧化物催化剂的活性位点:理论 MINDO/3、ab Initio 和 DFT 研究”(特邀)
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:K. Hatanaka;H. Fukumura;H. Kondoh;N. U. Zhanpeisov
- 通讯作者:N. U. Zhanpeisov
Magnetic field effects on ultrafast lattice compression dynamics of Si(111) crystal when excited by linearly-polarized femtosecond laser pulses
线偏振飞秒激光脉冲激发时磁场对 Si(111) 晶体超快晶格压缩动力学的影响
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:H. Fukumura;他
- 通讯作者:他
Effects of Circularly-Polarization on X-ray Pulse Emission From Distilled Water When Irradiated by Focused Femtosecond Laser Pulses
聚焦飞秒激光脉冲照射时圆偏振对蒸馏水 X 射线脉冲发射的影响
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:D. Sato;K. Hatanaka;H. Fukumura
- 通讯作者:H. Fukumura
Picosecond Time-resolved X-ray Diffraction Measurements of Si (111) Single Crystals Excited by a Low Intensity Femtosecond NIR Laser
低强度飞秒近红外激光激发的 Si (111) 单晶的皮秒时间分辨 X 射线衍射测量
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:H. Odaka;K. Hatanaka;H. Fukumura
- 通讯作者:H. Fukumura
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FUKUMURA Hiroshi其他文献
FUKUMURA Hiroshi的其他文献
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{{ truncateString('FUKUMURA Hiroshi', 18)}}的其他基金
Tunneling-probe-enhanced hyper-Raman scattering towards selective excitation of adsorbed molecules at the solid solution interface
隧道探针增强超拉曼散射,选择性激发固溶体界面处的吸附分子
- 批准号:
26620056 - 财政年份:2014
- 资助金额:
$ 60.67万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Structural Investigation of Photo-Excited States of Large Molecular Systems by using Laser-Induced Pulsed X-ray
使用激光诱导脉冲 X 射线对大分子系统的光激发态进行结构研究
- 批准号:
20245002 - 财政年份:2008
- 资助金额:
$ 60.67万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Molecular-level local characterization of nano-materials and development of a STM probe-enhanced Raman spectroscopy system
纳米材料的分子级局部表征及STM探针增强拉曼光谱系统的开发
- 批准号:
16310065 - 财政年份:2004
- 资助金额:
$ 60.67万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Laser-Induced Material Transfer in Nanometer Regions
纳米区域激光诱导材料转移的发展
- 批准号:
11355035 - 财政年份:1999
- 资助金额:
$ 60.67万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Study on the Propagation and Localization of Laser-Superheated Molecules in Organic Solids
有机固体中激光过热分子的传播和定域研究
- 批准号:
08454223 - 财政年份:1996
- 资助金额:
$ 60.67万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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