Ceramics-Silikáty 62, (4) 411 - 417 (2018) |
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LANTHANIDE-DOPED Y₂O₃ - THE PHOTOLUMINESCENT AND RADIOLUMINESCENT PROPERTIES OF SOL-GEL PREPARED SAMPLES
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Rubešová K. 1, Thoř T. 1, Jakeš V. 1, Mikolášová D. 1, Maixner J. 2, Jankovský O. 1, Cajzl J. 1, Nádherný L. 1, Beitlerová A. 3, Nikl M. 3
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1 Department of Inorganic Chemistry, University of Chemistry and Technology, Technická 5, Prague 6, 166 28, Czech Republic
2 Central Laboratories, University of Chemistry and Technology, Technická 5, Prague 6, 166 28, Czech Republic
3 Institute of Physics, the Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00, Prague 8, Czech Republic
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Keywords: Yttrium oxide, Europium, Dysprosium, Terbium, Praseodymium, Sol-gel, XRD, Photoluminescence, Radioluminescence
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Rare earth-metals sesquioxides (including Y₂O₃) represent a group of materials with extraordinary properties applicable in various technologies. However, one of the special properties - high melting temperature - hinders the wide application of monocrystalline materials. Therefore, it is still important to test other synthesis methods even for relatively well-known materials and even in the form of bulk ceramics. Here, we present the series of lanthanide-doped Y₂O₃ (Eu3+, Pr3+, Dy3+ and Tb3+ being the dopants) prepared by a Pechini-based method. We demonstrate that this method produces single-phase material with luminescence properties comparable to those of single crystals as proved by the photoluminescence and radioluminescence excited by UV light and X-rays, respectively. |
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doi: 10.13168/cs.2018.0038
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