Dual-ion substituted (MeY)₃(AlSi)₅O₁₂:Eu garnet phosphors: combinatorial screening, reductive annealing, and luminescence property

Abstract

A new strategy of the combination double substitution of cations and annealing creates the coexistence of activator Eu-ions with a mixed-valence state.

Luminescence investigation of CaY2Al4SiO12:Dy3+ phosphor synthesized by sol–gel method

“…investigated the luminescence behaviour of the CaY 2 Al 4 SiO 12 :Pb 2+ and yellow‐emitting CaY 2 Al 4 SiO 12 :Ce 3+ garnet phosphors respectively [4, 5]. Similarly YAG:Dy [6, 7], Lu 1 Gd 2 Ga 2 Al 3 O 12 :Dy [8], CaY 2 Al 4 SiO 12 :Eu 0.03 (CYASG:Eu) [9], Nd‐doped YAG nano‐powders [10], and Pr 3+ –Cr 3+ and Tb 3+ –Cr 3+ co‐doped Y 3 Al 2 Ga 3 O 12 (YAGG) phosphors [11] have been studied by other research groups. Trivalent dysprosium is the most preferred rare earth ion for producing white light‐emitting luminescence materials.…”