Sol-gel synthesis and luminescent properties of Eu3+:CsGd(WO4)2 red emitting phosphors

被引：22

作者：

Balaji, D. ^{[1
]}

Durairajan, A. ^{[1
]}

Rasu, K. Kavi ^{[1
]}

Babu, S. Moorthy ^{[1
]}

机构：

[1] Anna Univ, Ctr Crystal Growth, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 146卷

关键词：

Red phosphor; Optical properties; Sol-gel processes; Luminescence; Double tungstates; WHITE-LIGHT EMISSION; RAMAN-SPECTRA; HYDROTHERMAL SYNTHESIS; EU3+; GD; LN; EUROPIUM; DY3+;

D O I：

10.1016/j.jlumin.2013.10.008

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Phosphors of CsEuxGd(1-x)(WO4)(2) with different concentrations of Eu3+ were synthesized by the sol-gel method. The structure and morphology of the phosphors were characterized, using powder XRD and field emission scanning electron microscopy (FE-SEM). Microcrystals are formed with plate-like morphology. The organic phenomena of metal citrate-ethylene glycol complex formation and its degradation were investigated using the FT-IR spectroscopy. The samples show a broad excitation band at 400 nm and intense red emission (614 nm, D-5(0) -> F-7(2) transition) under 395 nm excitation, with CIE chromaticity coordinates (x = 0.64, y = 0.35). (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：458 / 463

页数：6

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