Issue 15, 2022, Issue in Progress
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RSC Advances

Crystal growth, layered structure and luminescence properties of K2Eu(PO4)(WO4)†

Kateryna V. Terebilenko, ORCID logo *a   Vitalii P. Chornii,ab   Valeriіa O. Zozulia,a   Il'ya A. Gural'skiy,a   Sergiu G. Shova,c   Serhii G. Nedilkoa  and  Mykola S. Slobodyanika  

* Corresponding authors

a Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine
E-mail: kterebilenko@gmail.com

b National University of Life and Environmental Sciences of Ukraine, Heroiv Oborony St, 15, Kyiv, Ukraine

c “Petru Poni” Institute of Macromolecular Chemistry, 41A Aleea Gr. Ghica Voda, 700487 Iasi, Romania

Abstract

K2Eu(PO4)(WO4) has been prepared via the high-temperature solution growth (HTSG) method using K2WO4–KPO3 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 [EuPO6]4− layers, which are composed of zigzag chains of [EuO8]n interlinked by slightly distorted PO4 tetrahedra. Isolated WO4 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 K2Eu(PO4)(WO4) as an efficient red phosphor for lighting applications.

Graphical abstract: Crystal growth, layered structure and luminescence properties of K2Eu(PO4)(WO4)

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Article information

DOI
https://doi.org/10.1039/D2RA00932C
Article type
Paper
Submitted
12 Feb 2022
Accepted
17 Mar 2022
First published
22 Mar 2022
This article is Open Access
Creative Commons BY license

RSC Adv., 2022,12, 8901-8907

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Crystal growth, layered structure and luminescence properties of K2Eu(PO4)(WO4)

K. V. Terebilenko, V. P. Chornii, V. O. Zozulia, I. A. Gural'skiy, S. G. Shova, S. G. Nedilko and M. S. Slobodyanik, RSC Adv., 2022, 12, 8901 DOI: 10.1039/D2RA00932C

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