Photoluminescence of core–shell nanoparticles made from yttrium stabilized zirconia powder grain coated with alumina

Crystengcomm Volume: 15 Issue: 17 Pages: 3292-3295 Published: 2013

25 de setembro de 2013 CDMF Artigo 0

Writers: Rosana F. Gonçalves; José T. O. Figueiredo; Alberthmeiry T. de Figueiredo; Maximo Siu Li; Elson Longo; and Mario J. Godinho

Keywords: Photoluminescence; nanoparticles

Abstract: A YSZ@Al2O3 nanocomposite was obtained by Al2O3 coating on the surface of yttrium stabilized zirconia via a polymeric precursor method. The resulting core–shell structures were characterized by X-ray diffraction, scanning electron microscopy, transmission electronic microscopy and PL spectra. The TEM micrographs clearly show a homogeneous Al2O3 shell around the ZrO2 core. The observed PL is related to surface–interface defects. Such novel technologies can, in principle, explore materials which are not available in the bulk single crystal form but their figure-of-merit is dramatically dependent on the surface–interface defect states.

DOI: 10.1039/c3ce27071h

Sobre CDMF 591 Artigos
O CDMF é um dos Centros de Pesquisa, Inovação e Difusão (CEPID) apoiados pela FAPESP. O Centro também recebe investimento do CNPq, a partir do Instituto Nacional de Ciência e Tecnologia dos Materiais em Nanotecnologia (INCTMN).
Website Facebook Twitter YouTube

Artigos Relacionados

Artigo

Silver-controlled evolution of morphological, structural, and optical properties of three-dimensional hierarchical WO3 structures synthesized from hydrothermal method

16 de fevereiro de 2018 LAbI UFSCar 0

Silver-controlled evolution of morphological, structural, and optical properties of three-dimensional hierarchical WO3 structures synthesized from hydrothermal method Abstract: Hierarchical structures of self-assembled three-dimensional (3D) WO3–Ag were synthesized via hydrothermal growth using precursor solutions of peroxopolytungstic acid […]