Giant Raman scattering from J-aggregated dyes inside carbon nanotubes for multispectral imaging
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چکیده
منابع مشابه
Raman Scattering in Carbon Nanotubes
The vibrational properties of single-walled carbon nanotubes reflect the electron and phonon confinement as well as the cylindrical geometry of the tubes. Raman scattering is one of the prime techniques for studying the fundamental properties of carbon tubes and nanotube characterization. The most important phonon for sample characterization is the radial-breathing mode, an in-phase radial move...
متن کاملRaman Scattering of Carbon Nanotubes
The present state of Raman scattering from carbon nanotubes is reviewed. In the first part of the presentation the basic concepts of Raman scattering are elucidated with particular emphasis on resonance scattering. The classical and the quantum-mechanical description are presented and the basic experimental instrumentation and procedures are described. Special Raman techniques are discussed. Ev...
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We explain the origin of the high-energy mode in the first-order Raman spectra of single-walled carbon nanotubes by double-resonant scattering. Following this interpretation, we calculate the multiple-peak structure as found in Raman experiments. The highest peak is above the graphite G-point frequency; its amplitude is larger than that of the second peak. We derive positive and negative freque...
متن کاملDiameter-Selective Raman Scattering from Vibrational Modes in Carbon Nanotubes
Single wall carbon nanotubes (SWNTs) that are found as close-packed arrays in crystalline ropes have been studied by using Raman scattering techniques with laser excitation wavelengths in the range from 514.5 to 1320 nanometers. Numerous Raman peaks were observed and identified with vibrational modes of armchair symmetry (n, n) SWNTs. The Raman spectra are in good agreement with lattice dynamic...
متن کاملSimultaneous fluorescence and Raman scattering from single carbon nanotubes.
Single-molecule fluorescence spectroscopy was used to determine the electronic properties of individual single-walled carbon nanotubes. Carbon nanotube structure was determined simultaneously from Raman spectroscopy. Fluorescence spectra from individual nanotubes with identical structures have different emission energies and linewidths that likely arise from defects or the local environment. Un...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2013
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2013.309