Photostimulable defects in nano-crystallites in fluorozirconate glasses

The photostimulated luminescence (PSL) from Eu‐doped fluorobromo‐ and fluorochlorozirconate glass‐ceramics is reviewed. The PSL is attributed to the characteristic emission of Eu2+ present in BaX2 (X = Br, Cl) crystallites which form in the glass upon thermal processing. Both the photoluminescence i...

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Veröffentlicht in:	Physica status solidi. A, Applications and materials science Applications and materials science, 2005-01, Vol.202 (2), p.243-249
Hauptverfasser:	Schweizer, S., Spaeth, J.-M., Secu, M., Edgar, A., Williams, G. V. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	78.55.Hx 78.55.Qr Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Physics
Online-Zugang:	Volltext
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Zusammenfassung:	The photostimulated luminescence (PSL) from Eu‐doped fluorobromo‐ and fluorochlorozirconate glass‐ceramics is reviewed. The PSL is attributed to the characteristic emission of Eu2+ present in BaX2 (X = Br, Cl) crystallites which form in the glass upon thermal processing. Both the photoluminescence intensity and the PSL efficiency increase with the size of the crystallites in a way that is consistent with a PSL‐inert surface layer surrounding the crystallites. The increasing crystallite sizes also result in decreased optical transparency at the stimulation wavelength due to scattering. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:	1862-6300 0031-8965 1862-6319 1521-396X
DOI:	10.1002/pssa.200460220