Temperature behavior of matrix and impurity emission of La1−xEuxVO4 powders synthesized by co-precipitation method

Author

Nedilko, S.G. ; Chukova, O. ; Nedilko, S.A. ; Voitenko, T. ; Sheludko, V. ; Gomenyuk, O.

Author_Institution

Taras Shevchenko Nat. Univ. of Kyiv, Kiev, Ukraine

fYear

2014

fDate

26-30 May 2014

Firstpage

174

Lastpage

175

Abstract

The La_1-xEu_xVO₄ powders were synthesized by co-precipitation method. Luminescence spectra of the investigated samples consist of wide non-structural bands of the matrix emission and narrow spectral lines caused by inner f-f electron transitions in the impurity Eu³⁺ ions. The both types of emission were studied within 10 - 300 K temperature range. Obtained dependencies are discussed using proposed models for matrix emission and structure of the nearest surrounding of the Eu³⁺ centers.

Keywords

europium compounds; lanthanum compounds; luminescence; powder technology; powders; precipitation (physical chemistry); Eu³⁺ centers; La_1-xEu_xVO₄; coprecipitation method; impurity Eu³⁺ ions; impurity emission; inner ff electron transitions; luminescence spectra; matrix emission; matrix temperature behavior; narrow spectral lines; nonstructural bands; powders; temperature 10 K to 300 K; Compounds; Diffraction; Furnaces; Eu³⁺; co-precipitation; luminescence; vanadate;

fLanguage

English

Publisher

ieee

Conference_Titel

Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on

Conference_Location

Lviv

Print_ISBN

978-1-4799-5960-0

Type

conf

DOI

10.1109/OMEE.2014.6912397

Filename

6912397