UV-SERS

UV-SERS (Surface-Enhanced Raman Scattering) is an advanced surface technique that utilizes the combination of Surface-Enhanced Raman Scattering (SERS) with ultraviolet (UV) light to improve the sensitivity and reliability of Raman spectroscopy analysis. This technique provides a powerful way to detect molecules on surfaces with high sensitivity and specific selectivity.

In UV-SERS, the surface enhancement efficiency is significantly increased by the use of nanostructures such as metallic nanoparticles or nanorods immobilized on a substrate. These nanostructures exhibit a strong localized surface plasmon resonance behavior, which is enhanced by the interaction with UV light. This leads to a significant improvement in the Raman signals of molecules adsorbed in the immediate vicinity of the nanostructures.

UV excitation offers several advantages for SERS analysis. First, UV light allows deeper penetration into the sample compared to visible light, resulting in improved detection of molecules in thicker layers or complex environments. Secondly, UV light can excite molecules with lower vibrational energies, resulting in an extended detection range of analyte molecules.

UV-SERS surface technology is used in a variety of applications, including chemical analysis, environmental monitoring, food and beverage control, medical diagnostics and forensic science. By combining high sensitivity, specific selectivity and the ability to analyze complex sample matrices, UV-SERS surface technology enables advanced and precise molecular characterization in various research and industrial fields.