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HERO ID
8203996
Reference Type
Journal Article
Title
Luminescence characterization of Dy and Eu doped Na6 Mg(SO4 )4 phosphors
Author(s)
Kore, BP; Pardhi, SA; Dhoble, NS; Dhoble, SJ; Swart, HC
Year
2017
Is Peer Reviewed?
1
Journal
Luminescence
ISSN:
1522-7235
EISSN:
1522-7243
Publisher
WILEY
Location
HOBOKEN
Volume
32
Issue
4
Page Numbers
564-572
Language
English
PMID
27726287
DOI
10.1002/bio.3222
Web of Science Id
WOS:000401144200013
Abstract
A series of single-phase phosphors based on Na6 Mg(SO4 )4 (Zeff = 11.70) doped with Dy and Eu was prepared by the wet chemical method. The photoluminescence (PL) and thermoluminescence (TL) properties of Dy3+ - and Eu3+ -activated Na6 Mg(SO4 )4 phosphors were investigated. The characteristic emissions of Dy3+ and Eu3+ were observed in the Na6 Mg(SO4 )4 host. The TL glow curve of the Na6 Mg(SO4 )4 :Dy phosphor consisted of a prominent peak at 234°C and a very small hump at 158°C. The TL sensitivity of the Na6 Mg(SO4 )4 :Dy phosphor was found to be four times less than the commercialized CaSO4 :Dy phosphor. The TL dose-response of the Na6 Mg(SO4 )4 :Dy phosphor was studied from a dose range of 5-10 kGy and the linear dose-response was observed up to 1 kGy which is good for a microcrystalline phosphor. Trapping parameters for both the samples were calculated using the Initial Rise and Chen's peak shape methods.
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