Luminescence in Eu2+ Activated (Ca5-xSrx)(PO4)3Cl (x=0.1, 2.4) Phosphors

被引：2

作者：

Mungmode, C. D. ^{[1
]}

Gahane, D. H. ^{[2
]}

Tupte, B., V ^{[3
]}

Bhave, M. M. ^{[2
]}

Moharil, S., V ^{[4
]}

机构：

[1] MG Coll, Armori 441208, India

[2] NH Coll, Bramhapuri 441206, India

[3] SGM Coll, Kurkheda 441209, India

[4] RTM Nagpur Univ, Nagpur 440010, Maharashtra, India

来源：

MATERIALS TODAY-PROCEEDINGS | 2019年 / 15卷

关键词：

Photoluminescence; Phosphor; Apatite; LED; CHLOROAPATITE;

D O I：

10.1016/j.matpr.2019.04.120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phosphates materials are low in cost, environmental friendly, have good thermal stability and good photoluminescence properties. In the present work Eu2+ doped (Ca5-xSrx)(PO4)(3)Cl (x = 0.1, 2.4) novel phosphors are prepared using wet chemical synthesis method. Intense blue emission is observed when characterised for photoluminescence spectrum. Photoluminescence spectrum of (Ca5-xSrx)(PO4)(3)Cl exhibit emission peak cantered at around 449 nm attributed to 4f(6)5d to 4f(7) transition of Eu2+ upon excitation by 365 nm radiations. Excitation spectrum of the phosphors shows efficient response in near UV region. CIE chromaticity coordinates for (Ca2.55Eu0.05) Sr-2.4(PO4)(3)Cl are x = 0.1508 to and y = 0.0331 and those for (Ca4.85Eu0.05) Sr-0.1(PO4)(3)Cl are x = 0.1510 and y = 0.0321 (red dot), indicating the emitting colour is tunable in blue region. Thus, results showed that (Ca5-xSrx) (PO4)(3)Cl:Eu2+ phosphors can be used as a blue host for white LED. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：555 / 559

页数：5

共 16 条

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