Crystal growth, layered structure and luminescence properties of KEu(PO)(WO).

KEu(PO)(WO) has been prepared the high-temperature solution growth (HTSG) method using KWO-KPO molten salts as a self-flux and characterized by single-crystal X-ray diffraction analysis, IR and luminescence spectroscopy. The structure of this new compound features a 2D framework containing [EuPO] layers, which are composed of zigzag chains of [EuO] interlinked by slightly distorted PO tetrahedra. Isolated WO tetrahedra are attached above and below these layers, leaving space for the K counter-cations.

Structural and optical properties of langbeinite-related red-emitting KSc(MoO)(PO):Eu phosphors.

The concentration series of langbeinite-related solid solutions KSc(MoO)(PO):Eu ( = 0.1, 0.2, 0.