Size-Dependent Optical Properties of Nanoscale and Bulk Long Persistent Phosphor SrAl2O4:Eu2+, Dy3+
Joint Authors
Huang, Shihua
Duan, Xiaoxia
Yi, Lixin
Zhang, Xiqing
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-13
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Nanoscale long persistent phosphor SrAl2O4:Eu2+, Dy3+ was prepared by autocombustion of citrate gel.
The energy level shift of activator Eu2+ and coactivator Dy3+ was analyzed according to the emission and the excitation spectra.
The band gap change of SrAl2O4 and the resulting trap depth change with particle size were discussed on the basis of analyzing the visible spectra, the vacuum ultraviolet (VUV) excitation spectra, and the thermoluminescence (TL) spectra.
The fluorescence quenching and the shallow traps originating from surface adsorption or surface defects explain the weak initial persistent phosphorescence and the fast phosphorescence decay in nanometer SrAl2O4:Eu2+, Dy3+.
It is confirmed that energy level, band gap, trap depth, defect, and surface adsorption are deeply related with each other in this nanoscale long persistent phosphor.
American Psychological Association (APA)
Duan, Xiaoxia& Yi, Lixin& Zhang, Xiqing& Huang, Shihua. 2015. Size-Dependent Optical Properties of Nanoscale and Bulk Long Persistent Phosphor SrAl2O4:Eu2+, Dy3+. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1068901
Modern Language Association (MLA)
Duan, Xiaoxia…[et al.]. Size-Dependent Optical Properties of Nanoscale and Bulk Long Persistent Phosphor SrAl2O4:Eu2+, Dy3+. Journal of Nanomaterials No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1068901
American Medical Association (AMA)
Duan, Xiaoxia& Yi, Lixin& Zhang, Xiqing& Huang, Shihua. Size-Dependent Optical Properties of Nanoscale and Bulk Long Persistent Phosphor SrAl2O4:Eu2+, Dy3+. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1068901
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068901