Title :
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
Abstract :
The La1-xEuxVO4 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; La1-xEuxVO4; 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;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912397
