Raman Scattering for 2D Materials
- 2D Material Testing Services
- Raman Scattering for 2D Materials
The field of two-dimensional (2D) and layered materials is stimulating the interest of researchers worldwide who are eager to advance and innovate viable pathways for large-scale synthesis, doping and monolayer integration, and develop unique characterization methods for research and exploitation. Raman scattering spectroscopy is one of the most powerful and widely used non-contact, non-destructive optical technologies for determining the characteristics of two-dimensional materials.
Alfa Chemistry offers tests to characterize 2D materials using Raman-based techniques, which are essential for understanding information about the chemical, magnetic, electronic, and structural properties of 2D materials. Contact us today so we can help you with your 2D material testing!
Raman is a light scattering technique that produces several peaks that show the strength and wavelength position of the light it scatters. Each peak represents a chemical bond vibration as well as bond groups such as benzene ring breathing modes, polymer chain vibrations, lattice patterns, and so on. Raman spectroscopy is a tool for nondestructive chemical analysis. We can extract and quantify a large amount of physical information about 2D materials from Raman spectroscopy, including information about layer thickness, disorder, edges and grain boundaries, doping, strain, symmetry, layer orientation, thermal conductivity, magnetic ordering, and unique excitation of information density waves.
Fig 1. Illustration of how SERS generates a larger signal from fewer molecules. In the figure, the spontaneous Raman spectrum of thiophenol from a defined volume is compared to the SERS signal from an estimated number of thiophenol molecules on a nanostructured surface. (Schultz Z. D, et al. 2020)
Raman-based techniques have been at the forefront of developing novel ways for measuring the thermal characteristics of atomically thin materials and heterogeneous systems.
|Optional Excitation Wavelength||325 nm, 514 nm, 532 nm, 633 nm, 785 nm|
|Sample Type||Powder / Film / Bulk / Liquid|
|Instrument Model||Thermo Fisher DXR3 Raman Microscope, Renishaw InVia Confocal Raman Microscope, HORIBA LabRAM HR Evolution|
|Lead Time||2~3 Weeks|
Our requirements for samples are as follows:
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