ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 62, (4) 411 - 417 (2018)


LANTHANIDE-DOPED Y₂O₃ - THE PHOTOLUMINESCENT AND RADIOLUMINESCENT PROPERTIES OF SOL-GEL PREPARED SAMPLES
 
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
 
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

Keywords: Yttrium oxide, Europium, Dysprosium, Terbium, Praseodymium, Sol-gel, XRD, Photoluminescence, Radioluminescence
 

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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