Luminescence of Tb3+-doped oxide glasses with high Gd 2O3 concentration under UV and X-ray excitation

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Author list: Chewpraditkul W., Sheng Q., Chen D., Beitlerova A., Nikl M.

Publisher: Wiley

Publication year: 2012

Journal: physica status solidi (a) – applications and materials science (1862-6300)

Volume number: 209

Issue number: 12

Start page: 2578

End page: 2582

Number of pages: 5

ISSN: 1862-6300

eISSN: 1862-6319

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84871248446&doi=10.1002%2fpssa.201228393&partnerID=40&md5=fa6e078ed3cfced6a0e9b1ee74c1f6e1

Languages: English-Great Britain (EN-GB)

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Abstract

This report presents the luminescence properties of Tb3+-doped oxide glasses with high Gd2O3 (25mol%) concentration under UV and X-ray excitation. The intense green 5D4→ 7FJ luminescence is observed with strong luminescence quenching of the 5D3 level due to cross-relaxation process. Energy transfer from Gd3+ to Tb3+ ions is confirmed by both luminescence spectra and decay measurements. The integral scintillation efficiency obtained for the 0.5wt% Tb3+-doped glass under X-ray excitation is of about 40% of that of the reference Bi 4Ge3O12 crystal. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

energy tranfer