Photoluminescent studies on Ti co-doped CaAl2O4:Eu2+, Ti3+ phosphor

被引：10

作者：

Ryu, H. ^{[1
]}

Bartwal, K. S. ^{[1
,2
]}

机构：

[1] Korea Res Inst Chem Technol, Energy Mat Res Ctr, Taejon 305600, South Korea

[2] Raja Ramanna Ctr Adv Technol, Laser Mat Dev & Devices Div, Indore 452013, India

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 10-11期

关键词：

phosphor; solid-state reaction; XRD; SEM; TEM; luminescence;

D O I：

10.1016/j.physb.2007.10.018

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Titanium ion co-doped CaAl2O4:Eu2+, Ti3+ phosphor was investigated. New compositions with combinations of Eu2+ (1 and 2 mol%) and Ti3+ (0.2-0.3 mol%) were prepared by solid-state synthesis method. These compositions show high brightness and longer persistent luminescence compared to parent phosphor. Phase and crystallinity were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Excitation and emission spectra were taken to investigate the luminescence characteristics. Broadband UV-excited luminescence of the CaAl2O4:Eu2+, Ti3+ was observed in the blue region (lambda(max) = 440nm) due to transitions from 4f(6)5d(1) to the 4f(7) configuration of the Eu2+ ion. Ti3+ ion co-doping generates deep traps, which results in longer afterglow phosphorescence. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1843 / 1847

页数：5

共 50 条

[41] Photoluminescence and thermoluminescence properties of Eu2+ doped and Eu2+,Dy3+ co-doped Ba2MgSi2O7 phosphors [J].

Sao, Sanjay Kumar ;

Brahme, Nameeta ;

Bisen, D. P. ;

Tiwari, Geetanjali .

LUMINESCENCE, 2016, 31 (07) :1364-1371

[42] Preparation and structural investigations of sol-gel derived Eu3+-doped CaAl2O4 [J].

Janakova, Stanislava ;

Salavcova, Linda ;

Renaudin, Guillaume ;

Filinchuk, Yaroslav ;

Boyer, Damien ;

Boutinaud, Philippe .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2007, 68 (5-6) :1147-1151

[43] Luminescence characteristics of Eu and Ti doped LiNaF2 phosphor [J].

Puppalwar, S. P. ;

Dhoble, S. J. ;

Lochab, S. P. ;

Kumar, A. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2012, 285 :6-10

[44] The investigation of the photoluminescent and piezoelectric effect of Eu3+ Check doped Y2Ti2O7 and Sm2Ti2O7 host crystals [J].

Ozturk, Esra ;

Sarilmaz, Ebru .

MATERIALS CHEMISTRY AND PHYSICS, 2020, 239

[45] Luminescence enhancement in monoclinic CaAl2O4:Eu2+, Cr3+ nanophosphor by fuel-blend combustion synthesis [J].

Krishna, R. Hari ;

Nagabhushana, B. M. ;

Sherikar, Baburao N. ;

Murthy, N. Suriya ;

Shivakumara, C. ;

Thomas, Tiju .

CHEMICAL ENGINEERING JOURNAL, 2015, 267 :317-323

[46] A ratiometric and lifetime-based luminescent thermometer exploiting the Co3+ luminescence in CaAl2O4:Co3+ and CaAl2O4:Co3+,Nd3+ [J].

Kniec, K. ;

Kochanowska, A. ;

Li, L. ;

Suta, M. ;

Marciniak, L. .

JOURNAL OF MATERIALS CHEMISTRY C, 2022, 10 (24) :9278-9286

[47] Temperature dependence of persistent luminescence in CaAl2O4:Eu2+, Nd3+ related to beta irradiation and optical excitation [J].

Kalita, J. M. ;

Chithambo, M. L. .

JOURNAL OF LUMINESCENCE, 2019, 206 :27-32

[48] Luminescence enhancement of SrZn2( PO4)2: Eu2+, Mn2+ phosphor co-doped with Al3+ [J].

Yang, Su-Hua ;

Lin, Che-Min ;

Tung, Wei-Min ;

Wang, Wei-Jun ;

Hung, Tu-Chieh .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 695 :2757-2763

[49] Structural, thermal and light emission properties of Eu, Sm, Dy, Er and Mn doped CaAl2O4 and SrAl2O4 [J].

Kaur, Puneet ;

Khanna, Atul .

CERAMICS INTERNATIONAL, 2021, 47 (10) :14655-14664

[50] Determination of the solid solubility of SrAl2O4 in CaAl2O4 through crystal field-dependent Eu2+ signatures [J].

Ju, SH ;

Kim, SG ;

Choi, JC ;

Park, HL ;

Mho, SI ;

Kim, TW .

MATERIALS RESEARCH BULLETIN, 1999, 34 (12-13) :1905-1909

← 1 2 3 4 5 →