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Title: Facile room temperature synthesis of SrSO{sub 4}:RE (RE = Sm{sup 3+}, Tb{sup 3+}, Ce{sup 3+}) microrods via a precipitation method and its luminescence properties

Graphical abstract: PL emission spectra of SrSO{sub 4}:xSm{sup 3+} powder phosphors under 401 nm excitation. The inset shows Sm{sup 3+} concentration of relative luminescence intensity. - Highlights: • Three SrSO{sub 4} phosphors were synthesized by a facile precipitation reaction. • Rod-like SrSO{sub 4} obtained microcrystals are about 14 μm length and 6 μm width. • In the PL spectrum of SrSO{sub 4}:Ce{sup 3+}, two overlapping bands are observed. • Narrow bands are observed in spectra of SrSO{sub 4}:RE (RE = Sm{sup 3+} and Tb{sup 3+}). • The critical quenching concentrations are 0.8, 2 and 0.8 mol%, respectively. - Abstract: Three SrSO{sub 4}:RE phosphors activated with rare-earth ions (RE = Sm{sup 3+}, Tb{sup 3+} and Ce{sup 3+}) were synthesized by a facile precipitation reaction without using any surfactants or templates. Especially, rod-like SrSO{sub 4} microcrystals with size of about 14 μm length and 6 μm width can be obtained under ambient condition at room temperature. The phase structure, microstructure and luminescence properties were characterized. In the photoluminescence property investigation of SrSO{sub 4}:Ce{sup 3+}, two overlapping bands with peaks at 301 and 320 nm due to Ce{sup 3+} were observed. Narrow bands observed in emission spectra and excitation spectra of SrSO{sub 4}:REmore » (RE = Sm{sup 3+} and Tb{sup 3+}) phosphors were well identified with the electronic transitions within the 4f{sup n} (n = 5 and 8) configurations of RE{sup 3+}.« less
Authors:
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Publication Date:
OSTI Identifier:
22285122
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 48; Journal Issue: 10; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERIUM IONS; CONCENTRATION RATIO; CRYSTALS; EMISSION SPECTRA; MICROSTRUCTURE; PHOSPHORS; PHOTOLUMINESCENCE; PRECIPITATION; RARE EARTHS; RHENIUM IONS; SAMARIUM IONS; STRONTIUM SULFATES; SURFACTANTS; SYNTHESIS; TEMPERATURE RANGE 0273-0400 K; TERBIUM IONS; X-RAY DIFFRACTION