Raman and Nanotechnology

The characterization of carbon nanotubes and graphene can be rapidly done using Raman spectroscopy, which has the ability to distinguish between the various structures of the single-walled nanotubes. The number of layers in a nanomaterial can also be determined by the use of Raman spectroscopy, as can the order of the materials. Analysis of nanomaterials for purity and quality can also be achieved by Raman spectroscopy. Raman spectroscopy one of the techniques for the characterization of graphene-related materials included in the international standard ASTM E3220, Standard Guide for the Characterization of Graphene Flakes, and one the measurement techniques recommended for graphene and graphene-type materials included in ISO/TR 19733.

Carbon Raman Spectra


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High throughput, Highly Sensitive, High Resolution Raman System

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1064nm Fiber Optic Raman System

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Highly Sensitive, High Resolution Fiber Optic Raman System

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Application Notes

Carbon black is a form of amorphous carbon. It is mainly used as reinforcement filler in automobile tires and other rubber products, but is also used in pigments, paint, and carbon paper. Raman spectroscopy is a very effective analytical technology to characterize carbon materials. The fast characterization of carbon black material using Raman spectroscopy is discussed here to demonstrate that Raman technology is well suited for carbon black material characterization.
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Raman spectroscopy has proven to be an effective technology to characterize conductive polymers in combination with conventional electrochemical experiments. Coupled with electrochemical techniques, it allows in-situ characterization of the molecular structure changes of polymers during the course of electrochemical reactions.
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Raman spectroscopy is an ideal analytical tool for nondestructive analysis of carbon nanomaterials. B&W Tek’s portable i-Raman Prime 532 is equipped with a fiber-optic sampling probe is ideal for analysis of carbon materials. The system is equipped with a high-throughput spectrometer with back-thinned CCD TE-cooled to -25°C, for high sensitivity. It is ideal for materials in powdered forms, with no need for sample preparation.
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Quality control in the food industry is a key issue that requires rapid, efficient and selective methods that could discriminate the products, detect fraudulent or accidental adulterations, and identify the content of some biomarkers within a particular process of storage conditions. For this, Raman spectroscopy in conjunction with the optical properties of metallic nanostructures is a powerful technique that can be implemented in food analysis.
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Graphene is the revolutionary carbon nanomaterial made up of honeycomb carbon atoms known for its unique characteristics and vast number of uses. In this application note, discover how Raman spectroscopy is a valuable tool for characterization of carbon nanomaterials due to its selectivity, speed, and ability to measure samples nondestructively.
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