Abstract
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.
Original language | English |
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Pages (from-to) | 197-201 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 390 |
Issue number | 1-2 |
DOIs | |
State | Published - Mar 22 2005 |
Scopus Subject Areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Keywords
- A. Amorphous materials
- B. Chemical synthesis
- D. Luminescence