PHYSICS AND MATHEMATICS

Giant raman scattering of organic luminophors adsorbed on quartz surface modified by silver nanoparticles

K. I. Matveeva, A. Yu. Zyubin, I. G. Samusev, V. V. Bryukhanov

Immanuel Kant Baltic Federal University, Kaliningrad

Abstract: This work shows the results of studies on the development of a methodology for creating hydrosol-modified silver nanoparticles with a size of 44 nm quartz surfaces for sensory purposes. A method for the controlled synthesis of silver hydrosols by means of reducing sodium salt AgNO$_3$ with sodium citrate is proposed. Media are proposed that enable the realization of the effect of giant Raman scattering by dye molecules of rhodamine 6G. It was shown that the order of amplification of the Raman signal by surfaceplasmons of silver nanoparticles for rhodamine 6G dye molecules can reach orders of magnitude 10$^2$ times. The efficiency of the practical use of hydrosols of silver nanoparticles of quartz surfaces to obtain the allowed spectra of the molecular structure of the rhodamine 6G dye is shown. In the future, the results of this work can be used to analyze chemical compounds in low concentrations and macroscopic biological objects.

Keywords: silver, nanoparticles, plasmon, giant Raman scattering, spectroscopy.

DOI: 10.23670/IRJ.2019.88.10.001

 English version: DOI: 10.23670/IRJ.2019.88.10.001