Investigation of ageing characteristics and identification of surface chemical changes on SrGa2S4:Ce3+ display phosphor under electron beam bombardment

被引：2

作者：

Moleme, P. A. ^{[1
]}

Pitale, Shreyas S. ^{[1
]}

Swart, H. C. ^{[1
]}

Ntwaeaborwa, O. M. ^{[1
]}

机构：

[1] Univ Orange Free State, Dept Phys, ZA-9300 Bloemfontein, South Africa

来源：

PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

SrGa2S4:Ce2+; PL; CL; Electron degradation; DEGRADATION; BEHAVIOR;

D O I：

10.1016/j.physb.2011.09.107

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cathodoluminescent ageing characteristics of SrGa2S4:Ce3+ under prolonged electron beam bombardment was studied and the data are presented. The cathodoluminescent intensity with an increasing Coulomb loading was observed to degrade under different primary electron beam voltages. Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS) were used to monitor the surface chemical changes during electron beam bombardment and after the degradation process. Auger peak to peak heights monitored during the ageing process suggest a loss in S and C and an initial increase in oxygen concentration on the surface. XPS results indicate the formation of a SrO overlayer due to electron stimulated surface chemical reactions (ESSCRs). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1645 / 1648

页数：4

共 13 条

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Moleme, P. A.
Swart, H. C.
Terblans, J. J.
Ntwaeaborwa, O. M.
PHYSICA B-CONDENSED MATTER, 2014, 439 : 144 - 148
[2] Effect of annealing atmosphere and electron beam pre-irradiation on the properties of SrGa2S4:Eu phosphor films
Kominami, H.
Mjakin, S. V.
Sychov, M. M.
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Nakanishi, Y.
Hara, K.
Mimura, H.
OPTICAL MATERIALS, 2013, 35 (05) : 1109 - 1111
[3] Surface chemical reactions during electron beam irradiation of nanocrystalline CaS:Ce3+ phosphor
Kumar, Vinay
Mishra, Varun
Pitale, Shreyas S.
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Coetsee, E.
Ntwaeaborwa, O. M.
Terblans, J. J.
Swart, H. C.
JOURNAL OF APPLIED PHYSICS, 2010, 107 (12)
[4] Excitation process of Ce3+ and Eu2+ ions doped in SrGa2S4 crystals under the condition of multiplication of electronic excitations
Kitaura, Mamoru
Tanaka, Senku
Itoh, Minoru
Ohnishi, Akimasa
Kominami, Hiroko
Hara, Kazuhiko
JOURNAL OF LUMINESCENCE, 2016, 172 : 243 - 248
[5] Effect of co-doping of Ce3+ and alkaline metals on the photoluminescence in CaGa2S4 and SrGa2S4 hosts
Hidaka, Chiharu
Miura, Kazutaka
Oikawa, Shinya
Takizawa, Takeo
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2006, 203 (11): : 2718 - 2722
[6] Microstructural characterization and photoluminescence of SrGa2S4:Ce3+ thin films grown by deposition from binary vapors
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Mikami, T
Ohmi, K
Tanaka, S
Kobayashi, H
IEICE TRANSACTIONS ON ELECTRONICS, 1997, E80C (08) : 1101 - 1108
[7] Low voltage cathodoluminescence properties of blue emitting SrGa2S4:Ce3+ and ZnS:Ag,Cl phosphors
Zhang, FL
Yang, S
Stoffers, C
Penczek, J
Yocom, PN
Zaremba, D
Wagner, BK
Summers, CJ
APPLIED PHYSICS LETTERS, 1998, 72 (18) : 2226 - 2228
[8] The influence of substrate temperature on the structural and luminescent properties of as-deposited SrGa2S4:Ce3+ thin films coated with a TaSi2 thin layer
Moleme, P. A.
Swart, H. C.
Kumar, Vinod
Terblans, J. J.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2016, 122 (03): : 1 - 8
[9] The influence of substrate temperature on the structural and luminescent properties of as-deposited SrGa2S4:Ce3+ thin films coated with a TaSi2 thin layer
P. A. Moleme
H. C. Swart
Vinod Kumar
J. J. Terblans
Applied Physics A, 2016, 122
[10] Wet Chemical Synthesis And Photoluminescence Study of SrAl2S4:Eu2+,Ce3+ Phosphor
Gharpure, Anjali R.
Wankhede, S. P.
Badar, A. M.
INTERNATIONAL CONFERENCE ON MULTIDIMENSIONAL ROLE OF BASIC SCIENCE IN ADVANCED TECHNOLOGY (ICMBAT 2018), 2019, 2104

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