Fig. 1
From: Sr[Li2Al2O2N2]:Eu2+—A high performance red phosphor to brighten the future

Structural overview of SALON. Red spheres represent strontium, blue spheres oxygen, and green spheres nitrogen atoms. The [LiO3N]8- tetrahedra are shown in orange, the [AlON3]8− tetrahedra in grey, and the red polyhedron represents the cube-like coordination of Sr2+. a Viewing of a 2 × 2 × 2 supercell of Sr[Li2Al2O2N2]:Eu2+ along [001̅]. b Perspective viewing of the eight-fold coordination of Sr2+ by O and N