Synthesis and Luminescent Properties of Europium(III, II) Phosphates
- Authors: Steblevskaya N.I.1, Belobeletskaya M.V.1, Ustinov A.Y.1,2, Medkov M.A.1
-
Affiliations:
- Institute of Chemistry, Far Eastern Branch
- Far Eastern Federal University
- Issue: Vol 64, No 2 (2019)
- Pages: 179-184
- Section: Synthesis and Properties of Inorganic Compounds
- URL: https://journal-vniispk.ru/0036-0236/article/view/169235
- DOI: https://doi.org/10.1134/S0036023619020219
- ID: 169235
Cite item
Abstract
Nanosized europium phosphates Eu3PO7, Eu(PO3)3, and Eu(PO3)3: Eu2+ have been prepared by low-temperature extraction-pyrolytic method. Optimal temperature and time of precursor pyrolysis for preparing luminophor containing europium in different oxidation states have been determined. Phosphate luminophore based on Eu3+ exhibit intense red luminescence with λmax ∼ 600–650 nm. Luminescence spectra of Eu(PO3)3: Eu2+ are characterized by emission bands in the region 400–700 nm typical for both Eu3+ (the bands of 5D0–7Fj(j = 0, 1, 2) transitions), and Eu2+ (the band of 4f65d → 8S7/2 transition). Luminescence-exciting wavelengths provide different contribution to the radiation intensity of both Eu2+ and Eu3+.
About the authors
N. I. Steblevskaya
Institute of Chemistry, Far Eastern Branch
Author for correspondence.
Email: steblevskaya@ich.dvo.ru
Russian Federation, Vladivostok, 690022
M. V. Belobeletskaya
Institute of Chemistry, Far Eastern Branch
Email: steblevskaya@ich.dvo.ru
Russian Federation, Vladivostok, 690022
A. Yu. Ustinov
Institute of Chemistry, Far Eastern Branch; Far Eastern Federal University
Email: steblevskaya@ich.dvo.ru
Russian Federation, Vladivostok, 690022; Vladivostok, 690091
M. A. Medkov
Institute of Chemistry, Far Eastern Branch
Email: steblevskaya@ich.dvo.ru
Russian Federation, Vladivostok, 690022
Supplementary files
