Synthesis and luminescence properties of Eu3+-activated NaLa(MoO4)(WO4) phosphor

NaLa(1-y)(MoO4)(2-x)(WO4)x:yEu3+ series of red-emitting phosphors were synthesised by a combustion route and their crystal structure, optical and luminescent properties were investigated. Their emission spectra showed an intense red emission at 616 nm due to the 5D0 to 7F2 transition of Eu3+. As the...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2012-01, Vol.38 (1), p.837-840
Main Authors: Zeng, L, Tang, W
Format: Article
Language:English
Subjects:
Ceramics
Diodes
Emission
Luminescence
Optical properties
Phosphors
Solid solutions
White light
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:NaLa(1-y)(MoO4)(2-x)(WO4)x:yEu3+ series of red-emitting phosphors were synthesised by a combustion route and their crystal structure, optical and luminescent properties were investigated. Their emission spectra showed an intense red emission at 616 nm due to the 5D0 to 7F2 transition of Eu3+. As the tungstate content increased, the intensity of the 5D0 to 7F2 emission of Eu3+ activated at a wavelength of 467 nm increased and reached a maximum when the relative ratio of Mo/W was 1:1. The effect of Eu3+ concentration on the luminescence behaviour of the solid solutions was also examined. The optical properties of NaLa0.9Eu0.1(MoO4)(WO4) phosphors make them attractive for application in white light emitting diodes (LEDs), in particular for near-UV InGaN-based white-LEDs.
ISSN:0272-8842
DOI:10.1016/j.ceramint.2011.06.047