Crystal growth, layered structure and luminescence properties of K 2 Eu(PO 4 )(WO 4 ).
Kateryna V TerebilenkoVitalii P ChorniiValeriіa O ZozuliaIl'ya A Gural'skiySergiu G ShovaSerhii G NedilkoMykola S SlobodyanikPublished in: RSC advances (2022)
K 2 Eu(PO 4 )(WO 4 ) has been prepared via the high-temperature solution growth (HTSG) method using K 2 WO 4 -KPO 3 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 6 ] 4- layers, which are composed of zigzag chains of [EuO 8 ] n interlinked by slightly distorted PO 4 tetrahedra. Isolated WO 4 tetrahedra are attached above and below these layers, leaving space for the K + counter-cations. The photoluminescence (PL) characteristics (spectra, line intensity distribution and decay kinetics) confirm structural data concerning one distinct position for europium ions. The luminescence color coordinates suggest K 2 Eu(PO 4 )(WO 4 ) as an efficient red phosphor for lighting applications.
Keyphrases
- visible light
- quantum dots
- energy transfer
- light emitting
- high temperature
- high resolution
- solid state
- ionic liquid
- high intensity
- electronic health record
- magnetic resonance imaging
- mass spectrometry
- magnetic resonance
- electron microscopy
- gold nanoparticles
- aqueous solution
- highly efficient
- deep learning
- molecular dynamics
- water soluble