Luminescence property of rare-earth doped bismuth-borate glasses
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Author list: Park J.M., Kim H.J., Kim S., Limsuwan P., Kaewkhao J.
Publisher: Elsevier
Publication year: 2012
Volume number: 32
Start page: 855
End page: 861
Number of pages: 7
ISSN: 1877-7058
Languages: English-Great Britain (EN-GB)
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Abstract
We fabricated rare-earth doped bismuth borate glasses by using melt-quench technique. Two different types glass samples of xBi2O3: (100-x)B2O3 (x=30 and 50) were made to compare the luminescence properties. We measured x-ray luminescence of Bi-glass by using a x-ray tube. Several dopants were doped into the Bi-glass to measure the x-ray luminescence such as CeO2, Nd2O3, Er 2O3, Dy2O3, Pr2O 3, Sm2O3, Ho2O3, Gd 2O3 and CeF3. Among them, Dy2O 3, Nd2O3 and Sm2O3 doped Bi-glass emitted luminescence. We measured emission spectrum of each samples. Dy2O3 doped bi-glass has emission band at 482 nm, 575 nm, 662 nm and 765 nm. Nd2O3 doped bi-glass have emission band at 895 nm and Sm2O3 doped Bi-glass has emission band at 569 nm, 598 nm, 641 nm and 705 nm. Moreover, Bi-glass scintillators with high light yield with good radiation hardness and low cost can be applied in high energy and nuclear physics, medical imaging, homeland security and radiation detection. ฉ 2010 Published by Elsevier Ltd.
Keywords
Dy, Nd, Rare earth ions, Sm, X-ray luminescence
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