A facile and effective strategy to synthesize orthorhombic Sr₂Al₆O₁₁:Eu²⁺,Dy³⁺ with blue-green persistent luminescence

Synthesis, luminescence and persistent luminescence of europium-doped strontium aluminates

“…combined with the results for S2A3 [56], and S4A [97] and others, are compiled in the Table 6. All these emission bands have lifetimes around 1 μs which are typical for Eu 2+ f-d transitions [144]. The lowest emission wavelength is observed for Eu 2+ in SA6.…”