Optical spectroscopy study of YVO4: Eu3+ nanopowders prepared by the proteic sol-gel route

被引：13

作者：

dos Santos, B. F., Jr. ^{[1
]}

Araujo, R. M. ^{[2
]}

Valerio, M. E. G. ^{[3
]}

Rezende, M. V. dos S. ^{[4
]}

机构：

[1] G CEC, BR-49031240 Aracaju, SE, Brazil

[2] Fac Pio Decimo, Dept Quim, BR-49095000 Aracaju, SE, Brazil

[3] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil

[4] Univ Fed Sergipe, Dept Fis, BR-49500000 Itabaiana, SE, Brazil

来源：

SOLID STATE SCIENCES | 2015年 / 42卷

关键词：

Computer modeling; Intensity parameters; Simple overlap model; Optical properties; LUMINESCENT PROPERTIES; PHOTOLUMINESCENT PROPERTIES; SPECTRAL PROPERTIES; PHOSPHOR FILMS; NANOPARTICLES; NANOCRYSTALS; TEMPERATURE; FABRICATION; PARAMETERS; EMISSION;

D O I：

10.1016/j.solidstatesciences.2015.03.006

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this study, computational and experimental methods are employed to study the optical properties of YVO4 induced by europium dopant. Atomistic modeling is used to predict the symmetry and the detailed geometry of the dopant site. This information is then used to calculate the crystal-field parameters. Eudoped YVO4 nanopowders are prepared via a sol-gel proteic technique. Thereafter, multiple techniques including X-ray diffraction (XRD) and transmission electron microscopy (TEM) are used to examine the structural properties and surface morphology of the YVO4: Eu3+ phosphors. The optical properties are studied using photoluminescence (PL) and radioluminescence (RL) spectroscopy performed at room temperature. The transition energy of the Eu3+ doped material is compared with the theoretical results. The intensity parameters ohm(2) and ohm(4) of Eu3+ in the YVO4 matrix are calculated with the Judd-Ofelt approach. (C) 2015 Elsevier Masson SAS. All rights reserved.

引用

页码：45 / 51

页数：7

共 74 条

[1] Spectral properties and emission efficiencies of GdVO4 phosphors [J].