Dy3+ and Mn2+ emission in fluoride- and chloride-based Na3(SO4)X (X = F or Cl) phosphors

被引：6
作者：
Gedam, S. C. [1 ]
Dhoble, S. J. [2 ]
Moharil, S. V. [2 ]
机构：
[1] KZS Sci Coll, Nagpur 441501, Maharashtra, India
[2] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India
来源：
LUMINESCENCE | 2012年 / 27卷 / 05期
关键词：
photoluminescence; energy transfer; XRD; halosulphate; phosphor; rare earth; LUMINESCENCE; APATITE; CE;
D O I：
10.1002/bio.1371
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In the present study, Na3(SO4)X (X?=?F or Cl) halosulphate phosphors have been synthesized by the solid-state diffusion method. The phase formation of the compounds Na3(SO4)F and Na3(SO4)Cl were confirmed by X-ray powder diffraction (XRD) measurement. Photoluminescence (PL) excitation spectrum measurement of Na3(SO4)F:Ce3+ and Na3(SO4)Cl:Ce3+ shows this phosphor can be efficiently excited by near-ultraviolet (UV) light and presents a dominant luminescence band centred at 341?nm for Ce3+, which is responsible for energy transfer to Dy3+and Mn2+ ions. The efficient Ce3+???Dy3+ energy transfer in Na3(SO4)F and Na3(SO4)Cl under UV wavelength was observed due to 4?F9/2 to 6H15/2 and 6H13/2 level, while Ce3+???Mn2+ was observed due to 4?T1 state to 6A1. The purpose of the present study is to develop and understanding the photoluminescence properties of Ce3+-, Dy3+- and Mn2+-doped fluoride and chloride Na3(SO4)X (X?=?F or Cl) luminescent material, which can be the efficient phosphors in many applications, such as scintillation applications, TL dosimetry and the lamp industry, etc. Copyright (c) 2012 John Wiley & Sons, Ltd.
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页码：441 / 446
页数：6
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