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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.)

Fast and simultaneous doping of ST0.9-x-y-zCa0.1In2O4:(xEu(3+), yTm(3+), zTb(3+)) superstructure by ultrasonic spray pyrolysis

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Author(s):
Santiago, A. A. G. [1] ; Lovisa, L. X. [1] ; Medeiros, P. N. [2] ; Li, M. S. [3] ; Carreno, N. L. V. [4] ; Longo, E. [5] ; Paskocimas, C. A. [1] ; Bomio, M. R. D. [1] ; Motta, F. V. [1]
Total Authors: 9
Affiliation:
[1] Univ Fed Rio Grande do Norte, DEMAT, LSQM, Campus Lagoa Nova, BR-59078900 Natal, RN - Brazil
[2] Inst Fed Bahia Campus Jacobina, IFBA, BR-44700000 Jacobina, BA - Brazil
[3] Univ Sao Paulo, IFSC, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
[4] Univ Fed Pelotas, Grad Program Mat Sci & Engn, Technol Dev Ctr, BR-96010000 Pelotas, RS - Brazil
[5] Univ Fed Sao Carlos, DQ, LIEC, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: ULTRASONICS SONOCHEMISTRY; v. 56, p. 14-24, SEP 2019.
Web of Science Citations: 5
Abstract

In the present work, Sr0.9-x-y-zCa0.1In2O4:(xEu(3+), yTm(3+), zTb(3+)) particles were synthesized by the ultrasonic spray pyrolysis (USP) method to obtain a single-phase white phosphorus formed by six different cations in solution within the lattice (superstructure). The samples were also structurally and morphologically characterized by X-ray diffraction (XRD) techniques and by field emission scanning electron microscopy (FE-SEM). The photoluminescent behavior and the characteristics of the emitted colors were studied by the variation in the co-doping of the rare earth elements. The Sr0.9Ga0.1In2O4 sample showed a near blue color emission, but all co-doped samples showed emission in white with very close chromaticity coordinates to the standard white (x = 0.33 and y = 0.33). The Tm3+ -> Tb3+ (ET1), Tm3+ -> Eu3+ (ET2) and Tb3+ -> Eu3+ (ET3) Energy Transfers were proposed and are considered necessary for adjusting and controlling the desired color properties. (AU)

FAPESP's process: 16/23891-6 - Computer modeling of condensed matter
Grantee:Alex Antonelli
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC