Radio- and photoluminescence properties of Ce/Tb co-doped glasses with huntite-like composition

0492158 - FZÚ 2019 RIV NL eng J - Journal Article
Lorenzi, R. - Golubev, N.V. - Ziaytdinova, M.Z. - Jarý, Vítězslav - Babin, Vladimir - Malashkevich, G.E. - Paleari, A. - Sigaev, V. N. - Fasoli, M. - Nikl, Martin
Radio- and photoluminescence properties of Ce/Tb co-doped glasses with huntite-like composition.
Optical Materials. Roč. 78, Apr (2018), s. 247-252. ISSN 0925-3467. E-ISSN 1873-1252
EU Projects: European Commission(XE) 690599 - ASCIMAT
Institutional support: RVO:68378271
Keywords : glasses * photoluminescence * radioluminescence * energy transfer * fluorescence
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.687, year: 2018

Optical properties of yttria-aluminoborate (YAB) glasses with general composition 10(Ce(x)TbyY((1-x-y)))-30Al(2)O(3)-60B(2)O(3) are investigated and compared with data available on YAB crystals with huntite-like structure. Ce doped samples show optical features ascribable to preferential location of rare earth ions in sites with specific geometry similar to that observed in crystalline structures. Samples prepared with Tb ions as emission activator and Ce ions as sensitizer have been studied within the framework of non radiative energy transfer. The resulting Forster radius is of 4.6 0.5 A comparable with that observed in Ce/Tb codoped YAI(3)(BO3)(4) crystals. The investigated materials possess radio- and photoluminescence emission efficiencies and performances comparable to that of crystalline counterparts with the advantage of having easiness of preparation and workability typical of glassy systems.
Permanent Link: http://hdl.handle.net/11104/0285716