Energy transfer in Ba1-xSrxFBr:Eu storage phosphors as a function of Sr and Eu concentration

P. Hackenschmied; H. Li; E. Epelbaum; R. Fasbender; M. Batentschuk; A. Winnacker

doi:10.1016/S1350-4487(01)00081-6

Energy transfer in Ba_1-xSr_xFBr:Eu storage phosphors as a function of Sr and Eu concentration

P. Hackenschmied
, H. Li
, E. Epelbaum
, R. Fasbender
, M. Batentschuk
, A. Winnacker

Division of Medical Physics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The influence of Eu doping on the energy transfer processes in BaFBr and Ba_0.82Sr_0.18FBr is investigated. A study of the phosphor efficiency under excitation into the F(Br^-) and F_A(Br^-, Sr²⁺) bands as well as excitation of the 4f⁷ → 4f⁶5d (4.5eV) Eu²⁺ transition and X-ray excitation are presented. The conditions and limits for the concentration quenching Eu²⁺ in BaFBr and Ba_0.82Sr_0.18FBr were established. The mechanism of the enhancement of photostimulation luminescence (PSL) intensity with the addition of Sr was established. It was shown that Sr²⁺ stabilizes hole centers at room temperature in a similar way as Eu²⁺.

Original language	English
Pages (from-to)	669-674
Number of pages	6
Journal	Radiation Measurements
Volume	33
Issue number	5
DOIs	https://doi.org/10.1016/S1350-4487(01)00081-6
State	Published - 2001

Keywords

Activator concentration
Efficiency
Photostimulated luminescence
Storage phosphor

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10.1016/S1350-4487(01)00081-6

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@article{ea0839fa509b49e898d4146e8779bb0f,

title = "Energy transfer in Ba1-xSrxFBr:Eu storage phosphors as a function of Sr and Eu concentration",

abstract = "The influence of Eu doping on the energy transfer processes in BaFBr and Ba0.82Sr0.18FBr is investigated. A study of the phosphor efficiency under excitation into the F(Br-) and FA(Br-, Sr2+) bands as well as excitation of the 4f7 → 4f65d (4.5eV) Eu2+ transition and X-ray excitation are presented. The conditions and limits for the concentration quenching Eu2+ in BaFBr and Ba0.82Sr0.18FBr were established. The mechanism of the enhancement of photostimulation luminescence (PSL) intensity with the addition of Sr was established. It was shown that Sr2+ stabilizes hole centers at room temperature in a similar way as Eu2+.",

keywords = "Activator concentration, Efficiency, Photostimulated luminescence, Storage phosphor",

author = "P. Hackenschmied and H. Li and E. Epelbaum and R. Fasbender and M. Batentschuk and A. Winnacker",

note = "Funding Information: This research was supported by the Bayerische Forschungsstiftung (FOROB), Project No. II.1. The authors thank M. Pielach of Siemens AG, Medical Engineering, Erlangen, Germany for measuring the Eu contents by X-ray fluorescence analysis and A. Osvet, Institute of Material Science VI, University of Erlangen-Nuernberg, Germany, for continuous fruitful discussions. ",

year = "2001",

doi = "10.1016/S1350-4487(01)00081-6",

language = "English",

volume = "33",

pages = "669--674",

journal = "Radiation Measurements",

issn = "1350-4487",

number = "5",

}

TY - JOUR

T1 - Energy transfer in Ba1-xSrxFBr:Eu storage phosphors as a function of Sr and Eu concentration

AU - Hackenschmied, P.

AU - Li, H.

AU - Epelbaum, E.

AU - Fasbender, R.

AU - Batentschuk, M.

AU - Winnacker, A.

N1 - Funding Information: This research was supported by the Bayerische Forschungsstiftung (FOROB), Project No. II.1. The authors thank M. Pielach of Siemens AG, Medical Engineering, Erlangen, Germany for measuring the Eu contents by X-ray fluorescence analysis and A. Osvet, Institute of Material Science VI, University of Erlangen-Nuernberg, Germany, for continuous fruitful discussions.

PY - 2001

Y1 - 2001

N2 - The influence of Eu doping on the energy transfer processes in BaFBr and Ba0.82Sr0.18FBr is investigated. A study of the phosphor efficiency under excitation into the F(Br-) and FA(Br-, Sr2+) bands as well as excitation of the 4f7 → 4f65d (4.5eV) Eu2+ transition and X-ray excitation are presented. The conditions and limits for the concentration quenching Eu2+ in BaFBr and Ba0.82Sr0.18FBr were established. The mechanism of the enhancement of photostimulation luminescence (PSL) intensity with the addition of Sr was established. It was shown that Sr2+ stabilizes hole centers at room temperature in a similar way as Eu2+.

AB - The influence of Eu doping on the energy transfer processes in BaFBr and Ba0.82Sr0.18FBr is investigated. A study of the phosphor efficiency under excitation into the F(Br-) and FA(Br-, Sr2+) bands as well as excitation of the 4f7 → 4f65d (4.5eV) Eu2+ transition and X-ray excitation are presented. The conditions and limits for the concentration quenching Eu2+ in BaFBr and Ba0.82Sr0.18FBr were established. The mechanism of the enhancement of photostimulation luminescence (PSL) intensity with the addition of Sr was established. It was shown that Sr2+ stabilizes hole centers at room temperature in a similar way as Eu2+.

KW - Activator concentration

KW - Efficiency

KW - Photostimulated luminescence

KW - Storage phosphor

UR - https://www.scopus.com/pages/publications/0034742073

U2 - 10.1016/S1350-4487(01)00081-6

DO - 10.1016/S1350-4487(01)00081-6

M3 - Article

AN - SCOPUS:0034742073

SN - 1350-4487

VL - 33

SP - 669

EP - 674

JO - Radiation Measurements

JF - Radiation Measurements

IS - 5

ER -

Energy transfer in Ba_1-xSr_xFBr:Eu storage phosphors as a function of Sr and Eu concentration

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Keywords

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