This instrument allows analysis in Raman spectroscopy after local excitation with a continuous laser (wavelength 532 nm, power 100 mW), either by point spectroscopy or mapping. The spectrometer is a 320 mm Princeton Teledyne IsoPlane with three gratings (150 lines/mm, 600 lines/mm, and 1800 lines/mm). The range of the Raman spectrum is between 150 cm-1 and 4000 cm-1. The apparatus is mounted on a reflecting microscope with a motorized XY scanning table (12.5 x 12.5 mm range, 200 nm resolution).
Raman spectroscopy can be used to identify the presence of specific molecules (or crystals), and in some cases also additional properties (i.e., defects, stoichiometry, thickness). The device can be used to obtain spectra of samples in various conditions (solid, liquid, and powder), as well as obtain a spectroscopic line profile and map of the surface.
Responsible for the instrument: Dr. Vadym Tkachuk.
Availability
Location
Laboratory of Organic Matter Physics, University of Nova Gorica
Vipaska 11c, 5270 Ajdovščina, Slovenia
Access
6 hours per week are dedicated to ALL-MICRO network activities.
Output examples
Optical image with Raman map (100 × 100 μm²) of the planar heterostructure based on graphene, h-BN, and an organic semiconductor (left), along with two spectra taken from locations marked by green and red squares (right).
