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Optical properties of Eu2+-doped strontium borate glasses containing F− and Li+ ions by Yanlin HUANG; Kiwan JANG; Xigang WANG; Chuanfang JIANG is a Materials Science article available to read on EtoBox.

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In this experiment, strontium borate glasses were prepared using the conventional quenching method in air atmosphere. Optical absorption, photoluminescence excitation and emission spectra, X-ray excited luminescence (XEL), and luminescence decay curve of the as-prepared glasses were investigated at room temperature. The as-prepared glasses had two kinds of Eu ions, i.e., Eu 2+ and Eu 3+ . Compared with the reported results of strontium borate glasses, Eu 2+ luminescence was enhanced in the studied strontium borate glasses coprepared with F -and Li + ions. The coexisting of Li + or F -in the borate glasses could create more negative defect V Sr ′′ and stabilize Eu 2+ ions, which might act as donor of electrons; For the F -doping, the new center of B(O, F) 4 (or BO 3 F) and BO 2 F 2 units could be considered to be the distorted (BO 4 ), which were needed as a rigid framework to stabilize the divalent rare earth ions.

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Author

Yanlin HUANG; Kiwan JANG; Xigang WANG; Chuanfang JIANG

Publisher

Elsevier Science; Elsevier ; The Metallurgical Industry Press; Elsevier BV (ISSN 1002-0721)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)