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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Y2O2SO4:Eu3+ nano-luminophore obtained by low temperature thermolysis of trivalent rare earth 5-sulfoisophthalate precursors

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Author(s):
Silva, I. G. N. [1] ; Morais, A. F. [1] ; Brito, H. F. [2] ; Mustafa, D. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Inst Quim, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CERAMICS INTERNATIONAL; v. 44, n. 13, p. 15700-15705, SEP 2018.
Web of Science Citations: 2
Abstract

Y2O2SO4:Eu3+ with monoclinic crystalline structure was synthesized in air by low temperature thermolysis (500 degrees C, 1 h) of RE3+-STMA precursors (RE: Rare Earth, STMA: 5-sulfoisophthalate). The annealing of the samples for 1 h at temperatures ranging from 500 to 1000 degrees C promotes a nanometric phase (18-89 nm) with increased crystallinity for higher temperatures. At the limit temperature of 1100 degrees C, the complete removal of Sulfur atoms leads to the formation of highly luminescent Y2O2:Eu3+ nanocrystals. Evaluation of the luminescent properties of the particles produced at different calcination temperature showed high emission quantum efficiencies (eta = 44-70%). (AU)

FAPESP's process: 15/19210-0 - Nanostructured double layered hydroxides with up e down-conversion properties for applications as sensitizers in solar cells
Grantee:Danilo Mustafa
Support Opportunities: Research Grants - Young Investigators Grants