Formation of the spectral contour width of nanoparticles plasmon resonance by electron cattering on phonons and a boundary surface

Abstract

The effectiveness of the method of narrowing plasmon resonances of nanoparticles by reducing the temperature was evaluated. It is shown that for particles with a radius of less than 70 nm, it is necessary to take into account the scattering of electrons by the particle surface. This condition significantly limits the possibilities of temperature control of scattering. The data on the transformation of the exciton and plasmon bands of the absorption spectra of spherical layered nanocomposites with the core-shell structure in an external magnetic field are presented. It is shown that the splitting of the plasmon resonance band in a magnetic field can be observed only at electron scattering frequencies below 1012 sec-1