Modification of Lattice Vibrations Spectrums in the Nanoparticles of Paradibrombenzol/Paradihlorbenzol Solid Solution

TL;DR

This study investigates how nanoparticle size reduction affects lattice vibration spectra in paradibrombenzol/paradihlorbenzol solid solutions, revealing frequency decreases linked to increased lattice parameters.

Contribution

It demonstrates the impact of nanoparticle size on lattice vibrations and provides calculations explaining the frequency shifts observed in Raman spectra.

Findings

Spectral line frequencies decrease in nanoparticles compared to bulk crystals.

Lattice parameters increase as nanoparticle size decreases.

Frequency modifications are explained by lattice parameter changes.

Abstract

Using Raman scattering, the solid solution nanoparticles of paradibrombenzol/paradihlorbenzol are investigated. It is found that in a spectrum of nanoparticles of solid solution frequencies of spectral lines are reduced in comparison with similar lines of a single crystal with the same concentration of components. Calculations of the lattice oscillations by Dyne's method are performed. It is shown that these modifications of frequencies can be caused by the increase of lattice parameters with the reduction of nanoparticles sizes.