Synthesis, structural and optical properties of Eu3+ activated fluoroperovskite (RbMgF3) phosphors

被引：24

作者：

Raja, A. ^{[1
]}

Annadurai, G. ^{[2
]}

Daniel, D. Joseph ^{[3
]}

Ramasamy, P. ^{[1
]}

机构：

[1] Sri Sivasubramaniya Nadar Coll Engn, SSN Res Ctr, Kalavakkam 603110, India

[2] Sri Sivasubramaniya Nadar Coll Engn, Dept Phys, Kalavakkam 603110, India

[3] Kyungpook Natl Univ, Dept Phys, Inst High Energy & Nanophys, Daegu 702701, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 727卷

关键词：

X-ray diffraction; Spectral analysis; Optical properties; Photoluminescence; Thermoluminescence; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENCE PROPERTIES; THERMAL-PROPERTIES; PEROVSKITES; TEMPERATURE; ENERGIES; TB3+; FE;

D O I：

10.1016/j.jallcom.2017.08.104

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pure and Europium (Eu3+) activated Rubidium Magnesium Fluoride (RbMgF3) phosphors were prepared by standard conventional solid state reaction method. The synthesized phosphors were characterized by Powder X-Ray Diffraction (PXRD) to confirm the phase purity. Molecule vibration activities were checked by Fourier Transform Infra-Red (FTIR) analysis. The surface morphology of RbMgF3 phosphors was characterized by Field Emission - Scanning Electron Microscopy analysis (FE-SEM). The elemental composition and purity of the products were confirmed by the energy-dispersive X-ray spectroscopy (EDX) results. UV-Visible spectral study was carried out for the Eu3+ doped RbMgF3 phosphors. Photoluminescence (PL) Emission and excitation were measured. The Commission Internationale del'Eclairage (CIE) chromaticity coordinates of Eu3+ activated RbMgF3 phosphors were calculated to be x = 0.571 and y = 0.426. The quantum efficiency of the as prepared 0.5 mol% Eu3+ doped RbMgF3 phosphors was analyzed. The experimental result reveals that the Eu3+ doped RbMgF3 red emitting phosphor is a potential candidate for white light emitting diodes (WLEDs) pumped by near-UV chip. The thermolumi-nescence property of Eu3+ activated RbMgF3 has been investigated for X-ray irradiation. The main TL glow curve peak exhibits 530 K. Order of kinetics (b), activation energy (E), and frequency factor (s) were determined by peak shape method. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：215 / 223

页数：9

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