Photostimulated luminescence of BaFBr:Eu2+ phosphors

被引：6

作者：

Chen, W ^{[1
]}

Su, MZ ^{[1
]}

Song, JQ ^{[1
]}

Lin, JH ^{[1
]}

机构：

[1] BEIJING UNIV, DEPT CHEM, BEIJING 100871, PEOPLES R CHINA

来源：

JOURNAL OF APPLIED PHYSICS | 1996年 / 80卷 / 09期

关键词：

D O I：

10.1063/1.363468

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

After x-irradiation for 10 s, luminescence from BaFBr:Eu2+ phosphors by photostimulation of longer wavelength than F absorption bands was observed and assigned to the surface states or intrinsic defects of the powders. It is found that the luminescence by photostimulation into F bands can be reduced via electron migration from F centers into the surface states or intrinsic defects, thus reducing the x-ray storage or image stability. Surface passivation can lower these defects and improve the phosphors or imaging plate quality. (C) 1996 American Institute of Physics.

引用

页码：5309 / 5311

页数：3

共 17 条

[1]

CHEN W, 1995, J MATER SCI TECHNOL, V11, P388

[2]

CHEN W, 1991, THESIS PEKING U

[3]

CHEN W, 1993, CHINESE SCI BULL, V38, P766

[4]

CHEN W, 1993, CHIN J LUMIN, V14, P119

[5] PHOTOSTIMULABLE PHOSPHORS FOR X-RAY-IMAGING - APPLICATIONS AND MECHANISM [J].

CRAWFORD, MK ;

BRIXNER, LH .

JOURNAL OF LUMINESCENCE, 1991, 48-9 :37-42

[6] TEMPERATURE-DEPENDENCE OF THE PHOTOSTIMULATED LUMINESCENCE OF X-IRRADIATED BAFBR-EU-2+ [J].

HANGLEITER, T ;

KOSCHNICK, FK ;

SPAETH, JM ;

NUTTALL, RHD ;

EACHUS, RS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (32) :6837-6846

[7] MECHANISM OF PHOTOSTIMULATED LUMINESCENCE PROCESS IN BAFBR-EU2+ PHOSPHORS [J].

IWABUCHI, Y ;

MORI, N ;

TAKAHASHI, K ;

MATSUDA, T ;

SHIONOYA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1994, 33 (1A) :178-185

[8] STRUCTURE AND OPTICAL-PROPERTIES OF 2 TYPES OF F-CENTER IN BAFBR [J].

KOSCHNICK, FK ;

HANGLEITER, T ;

SPAETH, JM ;

EACHUS, RS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (11) :3001-3013

[9] STUDY OF SPATIAL CORRELATIONS BETWEEN RADIATION-INDUCED DEFECTS AND THE ACTIVATOR EU-2+ IN THE X-RAY STORAGE PHOSPHOR BAFBREU2+ WITH OPTICAL-DETECTION OF ELECTRON-PARAMAGNETIC RESONANCE [J].

KOSCHNICK, FK ;

SPAETH, JM ;

EACHUS, RS .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (45) :8919-8932

[10] CREATION OF PHOTOSTIMULABLE CENTERS IN BAFBR-EU-2+ SINGLE-CRYSTALS BY VACUUM-ULTRAVIOLET RADIATION [J].

RUTER, HH ;

VONSEGGERN, H ;

REININGER, R ;

SAILE, V .

PHYSICAL REVIEW LETTERS, 1990, 65 (19) :2438-2441

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