Investigation of local structure distortion and electron cloud interaction on emission-band broadening induced by the concentration perturbation effect of cation substitution in BaY₂Si₃O₁₀:Eu phosphors

Abstract

Here, we conceived a concentration perturbation effect to obtain cyan-emitting phosphors based on local structure distortion and electron cloud interaction.

Structure and luminescence properties of a novel broadband green-emitting oxyapatite-type phosphor

“…8,9 Eu 2+ with a wide emission color range is a popular activator with intensive absorption in the UV and visible regions. [10][11][12][13][14] Transitions between the ground state (4f energy level) and the excited 5d-state of Eu 2+ can be inuenced by the crystal lattice pattern, e.g., crystal-eld strength, atom coordination, and covalence. [15][16][17] Moreover, the careful selection of the host material is also critical since the host structure will affect the crystal eld environment of the RE ions, which will change the energy transitions of the RE ions.…”