Near-infrared photoluminescence enhancement and radiative energy transfer in RE-doped zinc-silicate glass (RE = Ho, Er, Tm) after silver ion exchange

0543284 - ÚFE 2022 RIV NL eng J - Článek v odborném periodiku
Vařák, Petr - Nekvindová, P. - Vytykáčová, Soňa - Michalcová, A. - Malinský, Petr - Oswald, Jiří
Near-infrared photoluminescence enhancement and radiative energy transfer in RE-doped zinc-silicate glass (RE = Ho, Er, Tm) after silver ion exchange.
Journal of Non-Crystalline Solids. Roč. 557, APR (2021), č. článku 120580. ISSN 0022-3093. E-ISSN 1873-4812
Institucionální podpora: RVO:67985882 ; RVO:61389005 ; RVO:68378271
Klíčová slova: Holmium * Thulium * Photoluminescence * Rare-earth ions * Silver * Silicate glass * Energy transfer
Obor OECD: Optics (including laser optics and quantum optics); Nuclear physics (UJF-V); Inorganic and nuclear chemistry (FZU-D)
Impakt faktor: 4.458, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jnoncrysol.2020.120580

Co-doping of rare-earth-doped glasses with silver is a promising option to enhance the photoluminescence of rare-earth (RE) ions. The enhancement of the emission of erbium has been demonstrated with great effect, but the research on the effect of silver on the near-infrared luminescence of holmiumand thulium-doped glass has been scarce. We have prepared a set of zinc-silicate glass samples doped by Ho3+/Yb3+, Er3+/Yb3+ and Tm3+/Yb3+ ions and co-doped them with silver to clarify the mechanisms behind luminescence enhancement and explore the possibility of enhancing the luminescence of holmiumand thulium-doped glass. Our results show that silver dimers increase the luminescence of RE-doped glass upon excitation in the visible range via the energy-transfer mechanism. Moreover, the photoluminescence enhancement has been observed upon excitation at 975 nm due to a combination of effects such as the structural changes of a silicate matrix and the SPR effect of silver nanoparticles
Trvalý link: http://hdl.handle.net/11104/0320517