Effect of [Al.sup.3+] additions on the microstructure and photoluminescence of SrTi[O.sub.3]:[Pr.sup.3+] phosphors produced by the sol-gel method

The effect of various concentrations of [Pr.sup.3+] on the structural and luminescent characteristics of SrTi[O.sub.3]:[Pr.sup.3+] phosphors synthesized by the sol-gel method was investigated. Maximum intensity of red luminescence (617 nm) for SrTi[O.sub.3]:[Pr.sup.3+] with excitation by ultraviolet...

Full description

Saved in:
Bibliographic Details
Published inTheoretical and experimental chemistry Vol. 49; no. 3; p. 158
Main Authors Marchylo, O.M, Nakanishi, Y, Kominami, H, Hara, K, Zavyalova, L.V, Svechnikov, S.V, Snopok, B.A
Format Journal Article
LanguageEnglish
Published Springer 01.07.2013
Subjects
Analysis
Methods
Nuclear radiation
Photoluminescence
Online AccessGet full text

Cover

More Information
Summary:The effect of various concentrations of [Pr.sup.3+] on the structural and luminescent characteristics of SrTi[O.sub.3]:[Pr.sup.3+] phosphors synthesized by the sol-gel method was investigated. Maximum intensity of red luminescence (617 nm) for SrTi[O.sub.3]:[Pr.sup.3+] with excitation by ultraviolet radiation is observed at an effective [Pr.sup.3+] concentration of 0.2 mole %. It was shown that the addition of aluminum at the optimum [Pr.sup.3+] concentration leads to deterioration of the crystallinity and reduces brightness of the SrTi[O.sub.3]:[Pr.sup.3+] luminescence. The reason for the last effect may be the presence of minute amounts of iron impurity in the initial reagents. Key words: phosphor, SrTi[O.sub.3]:[Pr.sup.3+], photoluminescence, aluminum, iron.
ISSN:0040-5760
1573-935X