Intense visible fluorescence and energy transfer in Dy3+, Tb3+, Sm3+ and Eu3+ doped rare-earth borate glasses

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)197-201
Journal / PublicationJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - 22 Mar 2005


Tb3+/Dy3+ and Eu3+/Sm3+ doped rare-earth borate glasses have been synthesized and characterized. Under UV excitation, Dy3+, Tb3+, Sm3+ and Eu 3+ emit intense yellowish white, green, reddish orange and red lights, respectively. In Tb3+/Dy3+ co-doped glasses, the enhancement of Tb3+ green emission is observed, and the sensitization is related to the efficient energy transfer from Dy3+ to Tb 3+. In Eu3+/Sm3+ co-doped glasses, the excitation wavelength range of Eu3+ emission is broadened owing to the energy transfer from Sm3+ to Eu3+. This broadening makes the Ar+ 488 nm wavelength laser a powerful excitation source for Eu3+ fluorescence. The rare-earth doped glasses with various visible emissions are useful for developing new color light sources, fluorescent display devices, UV-sensor and tunable visible lasers. © 2004 Elsevier B.V. All rights reserved.

Research Area(s)

  • A. Amorphous materials, B. Chemical synthesis, D. Luminescence