Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 211, Issue -, Pages 13-19Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2016.05.015
Keywords
Phosphors; Inorganic materials; Luminescence; Energy transfer
Funding
- National Natural Science Foundation of China [21576002, 11404013, 61405003]
- Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions [CITTCD 201404030]
- Funding for training talents in Beijing City [2011D005003000012]
- Scientific Research Common Program of Beijing Municipal Commission of Education [PXM2015_014213_000063]
- Characteristic research team of Beijing Technology and Business University [19008001076]
- Academic Innovation Project Funding of Beijing Technology and Business University [19000550246]
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A series of Ce3+ or Tb3+ doped and Ce3+/Tb3+ co-doped Sr3Lu(PO4)(3) phosphors were prepared via the conventional high temperature solid-state reaction. The phase structure, photoluminescence and energy transfer properties of samples were studied in detail. The optimal proportion of Ce3+ single doping is 4 mol% with maximal fluorescence intensity. The Sr3Lu(PO4)(3):Ce3+, Tb3+ phosphor shows both a blue emission (428 nm) from Ce3+ and a yellowish-green emission (545 nm) from Tb3+ with considerable intensity under ultraviolet (UV) excitation (268 nm). The energy transfer from Ce3+ to Tb3+ ions takes place in the Sr3Lu(PO4)(3):Ce3+, Tb3+ phosphor on the basis of the analysis of the luminescence spectra. The energy transfer mechanism from CO3+ to Tb3+ ions was proved to be dipole-dipole interaction. The energy transfer behaviors in Sr3Lu(PO4)(3):Ce3+, Tb3+ phosphor is also investigated by the lifetime measurement. The results show that this phosphor has potential applications for UV white-light LEDs. (C) 2016 Elsevier B.V. All rights reserved.
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