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Title: Eu3+ luminescence in Na3SO4F and NaMgSO4F halosulphate phosphor for mercury-free lamps
Authors: Nagpure, I M
Dhoble, S J
Godbole, S V
Bhide, M K
Pode, R B
Issue Date: Jun-2009
Publisher: CSIR
Abstract: Polycrystalline Na3SO4F:Eu and NaMgSO4F:Eu phosphors prepared by a wet chemical method has been studied for its photoluminescence (PL) characteristics. PL emission spectra of Na3SO4F and NaMgSO4F, phosphors under 393 nm excitation (mercury-free excitation) shows very strong prominet peak at 591 nm due to 5Do 7F1 transition and 613 nm corresponding to 5Do 7F2 transition in the red region of the spectrum. The PL emission spectra of Eu3+ ion in the Na3SO4F:Eu and NaMgSO4F:Eu phosphors are applicable for mercury free lamp industries.
Description: 181-184
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.16(3) [June 2009]

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