RbLiZn5(PO4)4 and BaLiZn3(PO4)3: two new zinc orthophosphates with all tetrahedra-based anion frameworks

BaLiZn3(PO4)3:Eu2+: Ultranarrow-Band Violet Emission in a Highly Symmetric Crystal Structure

“…Figure b shows the XRD patterns of Ba 1– x LiZn 3 (PO 4 ) 3 : x Eu 2+ ( x = 0, 0.3, 0.5, 0.8, 1, 3, and 5%) samples with the standard card of BaLiZn 3 (PO 4 ) 3 reported by Tang et al The as-synthesized BLZPO: x Eu 2+ samples can be certified by the inexistence of any impurity phases. The XRD patterns show good agreement with the standard card, indicating that the phase purity is unaffected by the incorporated Eu 2+ ions.…”

“…The crystal structure of zinc orthophosphate BaLiZn 3 (PO 4 ) 3 belongs to a centrosymmetric orthorhombic phase with space group Pccn (no. 56), 35 which is composed of Ba, P, O, Zn atoms (Figure 1a). The P, Zn, and Li atoms are coordinated with four O atoms to form [PO 4 ], [ZnO 4 ], and [LiO 4 ] tetrahedra.…”

“…The Zn1 site is fully occupied, whereas the Zn2 site is statistically occupied by Zn 2+ and Li + cations with a Zn 2+ /Li + ratio of 1:1. 35 The as-synthesized BLZPO:xEu 2+ samples can be certified by the inexistence of any impurity phases. The XRD patterns show good agreement with the standard card, indicating that the phase purity is unaffected by the incorporated Eu 2+ ions.…”