The long-persistent photoconductivity of SrAl2O4 : Eu2+, Dy3+ single crystals

Authors
Yuan, HB Jia, W Basun, SA Lu, L Meltzer, RS Yen, WM
Citation
Hb. Yuan et al., The long-persistent photoconductivity of SrAl2O4 : Eu2+, Dy3+ single crystals, J ELCHEM SO, 147(8), 2000, pp. 3154-3156
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics","Material Science & Engineering
Journal title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN journal
00134651 → ACNP
Volume
147
Issue
8
Year of publication
2000
Pages
3154 - 3156
Database
ISI
SICI code
0013-4651(200008)147:8<3154:TLPOS:>2.0.ZU;2-T
Abstract
Single crystals of SrAl2O4:Eu2+, Dy3+ with extremely strong afterglow were investigated with photoconductivity experiments. The photocurrent excitatio n spectra were measured at 80 and 300 K and compared with photoluminescence excitation spectra. Experiments on single crystals without doping Dy3+ wer e also performed for comparison. The results are found to support a hole-tr apping model which has been used to explain the strong afterglow from this material. (C) 2000 The Electrochemical Society. S0013-4651(00)01-006-5. All rights reserved.