Sm(3+)和Dy(3+)：MgLaLiSi₂O₇粉末荧光粉的发射分析

Emission analysis of Sm(3+) and Dy(3+):MgLaLiSi(2)O(7) powder phosphors.

作者信息

Raju G Seeta Rama, Buddhudu S

机构信息

Department of Physics, Sri Venkateswara University, Tirupati 517502, India.

出版信息

Spectrochim Acta A Mol Biomol Spectrosc. 2008 Aug;70(3):601-5. doi: 10.1016/j.saa.2007.08.004. Epub 2007 Aug 7.

DOI:10.1016/j.saa.2007.08.004

PMID:17855161

Abstract

This paper reports on the structural and emission properties of newly synthesized Sm(3+) and Dy(3+):MgLaLiSi(2)O(7) powder phosphors based on the measurement of their XRD, SEM, FTIR and photoluminescence spectra. Emission spectra of the Sm(3+):MgLaLiSi(2)O(7) phosphors with lambda(exci)=402 nm ((6)H(5/2)-->(4)F(7/2)) and Dy(3+):MgLaLiSi(2)O(7) phosphors with lambda(exci)=385 nm ((6)H(15/2)-->(4)I(13/2)) have been analyzed. Emission mechanisms of these phosphors have also been explained.

摘要

本文基于对新合成的Sm(3+)和Dy(3+)：MgLaLiSi₂O₇粉末荧光粉的XRD、SEM、FTIR和光致发光光谱的测量，报道了它们的结构和发光特性。分析了激发波长λ(exci)=402 nm（(6)H(5/2)-->(4)F(7/2)）的Sm(3+)：MgLaLiSi₂O₇荧光粉和激发波长λ(exci)=385 nm（(6)H(15/2)-->(4)I(13/2)）的Dy(3+)：MgLaLiSi₂O₇荧光粉的发射光谱。还解释了这些荧光粉的发射机制。