Comparison of the luminescence properties of the x-ray storage phosphors BaCl2: Ce3+ and BaBr2:Ce3+

J. Selling, G. Corradi, M. Secu, S. Schweizer

Research output: Contribution to journalArticle

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Abstract

The single-crystalline x-ray storage phosphor BaCl2:Ce 3+ has been investigated by photo- and x-ray luminescence, and also by observing the afterglow and the photostimulated luminescence (PSL). A single active Ce3+ site has been observed with a characteristic emission doublet at 349 and 373 nm at room temperature. The PSL stimulation spectrum shows a clear resemblance to F-type absorption spectra in undoped BaCl 2, indicating that the PSL-active electron centres are F-type centres. The results are compared with previous photoluminescence, PSL and new x-ray luminescence data on BaBr2:Ce3+. The integral PSL efficiency in the chloride is found to be somewhat smaller than in the bromide, which is still large enough for storage phosphor applications, while the efficiency in the bromide may be even larger or comparable to that of the commercial x-ray storage phosphor BaFBr:Eu2+.

Original languageEnglish
Pages (from-to)8069-8078
Number of pages10
JournalJournal of Physics Condensed Matter
Volume17
Issue number50
DOIs
Publication statusPublished - Dec 21 2005

Fingerprint

Phosphors
phosphors
Luminescence
luminescence
X rays
x rays
Bromides
bromides
barium chloride
afterglows
stimulation
Chlorides
Absorption spectra
Photoluminescence
chlorides
Crystalline materials
absorption spectra
photoluminescence
Electrons
room temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Comparison of the luminescence properties of the x-ray storage phosphors BaCl2 : Ce3+ and BaBr2:Ce3+. / Selling, J.; Corradi, G.; Secu, M.; Schweizer, S.

In: Journal of Physics Condensed Matter, Vol. 17, No. 50, 21.12.2005, p. 8069-8078.

Research output: Contribution to journalArticle

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