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Title: A facile preparation and the luminescent properties of Eu{sup 3+}-doped Y{sub 2}O{sub 2}SO{sub 4} nanopieces

Graphical abstract: - Highlights: • Y{sub 2}O{sub 2}SO{sub 4}:Eu{sup 3+} nanopieces were prepared via electrospinning followed by calcination. • The photoluminescence of Y{sub 2}O{sub 2}SO{sub 4}:Eu{sup 3+} nanopieces were investigated. • The Y{sub 2}O{sub 2}SO{sub 4}:Eu{sup 3+} was compared to nanoribbons and commercial Y{sub 2}O{sub 3}:Eu{sup 3+}. • The potential applications of the nanopieces and the facile method are suggested. - Abstract: The europium(III)-doped yttrium oxysulfate (Y{sub 2}O{sub 2}SO{sub 4}:Eu{sup 3+}) nanopieces have been prepared via electrospinning followed by calcination at 1000 °C in mixed gas of sulfur dioxide and air. Based on the experimental results, a possible formation mechanism for the nanopieces is that the nanopieces are determined by the directing template of electrospun nanoribbons and the multilayer crystal structure of Y{sub 2}O{sub 2}SO{sub 4}. Besides, the nanopieces show excellent luminescent properties with emissions at 581, 589, 597, 653, 619, and 697 nm resulting from the {sup 5}D{sub 0} → {sup 7}F{sub J} (J = 0, 1, 2, 3, 4) transition of Eu{sup 3+}. The peaks of charge transfer and {sup 5}D{sub 0} → {sup 7}F{sub 2} transition of Eu{sup 3+} obviously have red shifts comparing to those of both Y{sub 2}O{sub 3}:Eu{sup 3+} nanoribbons and commercial Y{sub 2}O{submore » 3}:Eu{sup 3+}. Moreover, the nanopieces exhibit stronger intensities than the Y{sub 2}O{sub 3}:Eu{sup 3+} in excitation and emission spectra. Concentration quenching in the nanopieces occurs when Eu{sup 3+} concentration is 11 mol%, indicating that the nanopieces have an optimum luminescent intensity under this doping concentration.« less
Authors:
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Publication Date:
OSTI Identifier:
22285222
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 48; Journal Issue: 11; 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; CALCINATION; CONCENTRATION RATIO; CRYSTAL STRUCTURE; DOPED MATERIALS; EMISSION SPECTRA; EUROPIUM IONS; INORGANIC COMPOUNDS; NANOSTRUCTURES; PHOTOLUMINESCENCE; RED SHIFT; SULFUR DIOXIDE; YTTRIUM; YTTRIUM OXIDES