title: Effect of UV irradiation on different types of luminescence of SrAl2O4:Eu,Dy phosphors.
abstract: This paper reports the luminescence behavior of Sr0.097Al2O4:Eu0.01,Dy0.02phosphors under UV-irradiation. The effect of UV-irradiation on afterglow (AG), thermoluminescence (TL) and mechanoluminescence (ML) of Sr0.097Al2O4:Eu0.01,Dy0.02phosphors is investigated. The space group of Sr0.097Al2O4:Eu0.01,Dy0.02phosphors is monoclinic P21. The prepared phosphors exhibit a long AG, intense TL and ML. It is found that the AG, ML intensity and TL increase with increasing duration of irradiation time. The ML intensity decreases with successive impact of the load onto the phosphors, whereby the diminished ML intensity can be recovered by UV-irradiation. Copyright © 2016 John Wiley & Sons, Ltd.
authors.affiliation: Department of Applied Physics, Raipur Institute of Technology, Chhatauna, Mandir Hasaud, Raipur, 492101 (C.G.), India. piyushjha22@rediffmail.com.
authors.forename: Piyush
authors.initials: P
authors.lastname: Jha
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D004419:Dysprosium / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry; D049449:Luminescence; D008163:Luminescent Measurements; D013324:Strontium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D005456:Fluorescent Dyes; D004419:Dysprosium; D005063:Europium; D000535:Aluminum; D013324:Strontium
keywords: Afterglow; Dy; Mechanoluminescence; Phosphors; SrAl2O4:Eu; Thermoluminescence; UV-irradiation