Structure and upconversion luminescence properties of Pr3+-doped Y2Si2O7 phosphor prepared by different methods

Designing dual-emission phosphors for temperature warning indication and dual-mode luminescence thermometry

“…By employing a conventional solid-state reaction methodology, 30,31 the 0.7%Mn 4+ ,5%Tb 3+ , and 0.7%Mn 4+ / x %Tb 3+ ( x = 1, 5, 10, and 15) co-doped SrGdLiTeO 6 samples were synthesized, respectively. The compounds, including SrCO 3 (99.5%), Li 2 CO 3 (99.7%), TeO 2 (99.95%), Gd 2 O 3 (99.99%), Tb 4 O 7 (99.99%), and MnCO 3 (99.99%), were weighed based on their stoichiometric molar ratio, followed by grinding in an agate mortar.…”

Enhanced biocidal activity of Pr3+ doped yttrium silicates by Tm3+ and Yb3+ co-doping

“…35 The calculated cell parameters (Table S2, ESI †) show some divergence from the average values observed in silicates, but are comparable to those observed in other related disilicates, e.g., Ho 2 Si 2 O 7 or Dy 2 Si 2 O 7 . 36,37 The crystal structure of Y 2 Si 2 O 7 belongs to the group of so-called mixed anion silicates, 38 a polymorphs material with low symmetry where every atom has a separately defined site in this type of structure, thus any doping can lead to changes in the XRD reflex position or relative intensity. The Y 3+ , Pr 3+ , Yb 3+ and Tm 3+ differ in X-ray scattering factors, thus influence the intensity and position of the observed XRD lines.…”

Cool green-emissive Y2Si2O7:Tb3+ nanophosphor: auto-combustion synthesis and structural and photoluminescence characteristics with good thermal stability for lighting applications

“… 20 Specifically, on activation with RE elements, these materials show optimal performance for luminous applications such as plasma displays, laser materials, and high energy nanophosphors. 21 These phosphors provide very efficient luminescence when excited by UV and cathode rays. Because of their chemical stability, yttrium disilicates, also known as yttrium pyrosilicates (Y 2 Si 2 O 7 ), are among the most suitable silicates.…”