Infrared and raman spectra of nanoporous SiO2 matrix filled with BaTiO3 nanoparticles Lopez J.A.R. es_PE Silva L.M.A. es_PE Emelianov N.A. es_PE Korotkov L.N. es_PE 2024-05-30T23:13:38Z 2024-05-30T23:13:38Z 2020
dc.description.abstract Nanocomposite in the form of a porous matrix SiO2 with average pore size of 320 nm filled with barium titanate nanoparticles in paraelectric cubic phase was obtained. Shift of the stretching vibration of Si-O-Si to higher frequencies caused by increased strengthening of the network in the matrices has been observed. Also demonstrated that decrease in the intensity of the absorption relating to Si-O(H) stretching vibration relative to Si-O(-Si) stretching vibration. Raman scattering spectra demonstrate the presence of both a cubic and a tetragonal ferroelectric crystalline phase in the filler nanoparticles. Thus, the mechanical deformation of nanoparticles in the pores of the matrix can lead to a change in the crystalline phase of the filler. © 2020 Trans Tech Publications Ltd, Switzerland.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.scopus 2-s2.0-85083398134
dc.language.iso eng
dc.publisher Trans Tech Publications Ltd
dc.relation.ispartof Key Engineering Materials
dc.rights info:eu-repo/semantics/openAccess
dc.subject SiO2 porous matrix
dc.subject BaTiO3 nanoparticles es_PE
dc.subject Infrared spectra es_PE
dc.subject Nanocomposite es_PE
dc.subject Raman spectra es_PE
dc.title Infrared and raman spectra of nanoporous SiO2 matrix filled with BaTiO3 nanoparticles
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication