Perspectives On Carbon Nanotubes And Graphene Raman Spectroscopy Pdf
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- Carbon Nanotubes and Graphene
- Perspectives on carbon nanotubes and graphene Raman spectroscopy.
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These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric. Find more information on the Altmetric Attention Score and how the score is calculated. Raman spectroscopy is here shown to provide a powerful tool to differentiate between two different sp 2 carbon nanostructures carbon nanotubes and graphene which have many properties in common and others that differ.
Raman spectroscopy has been already established as a powerful tool for characterizing the different types of carbon nanostructures , ranging from the highly ordered two-dimensional graphene and one-dimensional nanotubes , down to disordered materials, like nanographite and charcoal. Here we focus on the recent advances of Raman spectroscopy within carbon nanoscience. We discuss in situ nano-manipulation and Raman imaging for addressing controlled perturbations; multi-technique work for the development of nanometrology; crossing the diffraction limit with near-field optics for high resolution imaging. Finally, the applications of Raman spectroscopy in cross-referenced fields, like biotechnology and soil science, are discussed. If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using Copyright Clearance Center.
Carbon Nanotubes and Graphene
Characterization techniques for graphene-based materials in catalysis[J]. Article views PDF downloads Cited by Figures Previous Article Next Article. Review Topical Sections. Characterization techniques for graphene-based materials in catalysis.
Updated to include expanded coverage of the preparation, purification, structural characterization, and common application areas of single- and multi-walled CNT structures, this work compares, contrasts, and, where appropriate, unitizes CNT to graphene. New chapters encompass recent developments in the theoretical treatments of electronic and vibrational structures, and magnetic, optical, and electrical solid-state properties, providing a vital base to research. Current and potential applications of both materials, including the prospect for large-scale synthesis of graphene, biological structures, and flexible electronics, are also critically discussed. Graduate-level materials scientists and solid state physicists or chemists working with any allotrope of carbon. Kazuyoshi Tanaka received a doctorate of Engineering degree from Kyoto University in under the guidance of late Professor Kenichi Fukui who was a co-laureate of Nobel Prize in chemistry in with Professor Roald Hoffmann in Cornell University. Using the technique, he has brought a new type of information of local atomic structures of crystals into condensed matter physics, solid state chemistry, crystallography, mineralogy and materials science. Ample experiences with the different types of materials including nanostructures of carbon materials have led him to discover carbon nanotubes in later years.
We review lattice vibrational modes in atomically thin two-dimensional 2D layered materials, focusing on 2D materials beyond graphene, such as group VI transition metal dichalcogenides, topological insulator bismuth chalcogenides, and black phosphorus. Although the composition and structure of those materials are remarkably different, they share a common and important feature, i. Black phosphorus , including crystalline structures and stacking order. We then review the studies on vibrational modes of layered materials and nanostructures probed by the powerful yet nondestructive Raman spectroscopy technique. Based on studies conducted before , recent investigations using more advanced techniques have pushed the studies of phonon modes in 2D layered materials to the atomically thin regime, down to monolayers. We will classify the recently reported general features into the following categories: phonon confinement effects and electron—phonon coupling, anomalous shifts in high-frequency intralayer vibrational modes and surface effects, reduced dimensionality and lower symmetry, the linear chain model and the substrate effect, stacking orders and interlayer shear modes, polarization dependence, and the resonance effect.
Perspectives on carbon nanotubes and graphene Raman spectroscopy.
Carbon nanotubes CNTs possess remarkable nonlinear optical properties; a particular application is to function as a mode locker used in ultrafast fiber lasers to produce ultrashort optical pulses. In this review, typical fabrication process and development of CNT SAs are discussed and we highlight the recent investigation and progress of state-of-the-art ultrafast fiber lasers covering GHz, bidirectional ultrafast fiber lasers, vectorial mode fiber lasers, comb systems, and mode-locking dynamics. In the past few decades, ultrafast fiber lasers have gained enormous attention and found applications covering broad fields from fundamental research to industrial process, based on their salient advantages, including maintenance-free operation, compactness, cost-effective design, high beam quality, high-efficient heat dissipation and rather low price [ 1 ], [ 2 ], [ 3 ]. The diversity of rare-earth-doped fiber gain medium is identified as a key element in the fiber resonator cavity and essential to produce various operation wavelengths ranging from near infrared to mid infrared [ 4 ], [ 5 ], [ 6 ], [ 7 ].
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