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Photoluminescent and X-ray photoemission studies of Eu3+-doped kosnarite KZr2(PO4)3 nanophosphor and its Judd–Ofelt analysis
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Photoluminescent and X-ray photoemission studies of Eu3+-doped kosnarite KZr2(PO4)3 nanophosphor and its Judd–Ofelt analysis
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Journal Article
Photoluminescent and X-ray photoemission studies of Eu3+-doped kosnarite KZr2(PO4)3 nanophosphor and its Judd–Ofelt analysis
2024
Overview
KZr2PO43:xEu3+ Nanophosphors with varying molar percentages (0.5, 1, 2, 3, 4, and 5 mol. %) are synthesized using a urea-assisted solution combustion synthesis approach. The phosphors exhibit crystallization in a rhombohedral phase, namely in the R 3¯ c space group with the help of X-ray diffraction. The anionic group of (PO4)3− is responsible for all the vibrations occurring in the FTIR spectra. The photoluminescence characteristics of KZr2PO43:xEu3+ (x = 0.5 – 5 mol. %) are examined when excited at a wavelength of 392 nm, resulting in the prominent emission at 613 nm. At a concentration of 2 mol. %, the optimal concentration is observed, and the emission tone of the phosphor is centered in the reddish part of the color gamut, with a high color purity of 92%. It is observed that the synthesized phosphor has a branching ratio more than 50%, indicating a possible laser emission transition. The band gap energy of KZr2PO43:Eu3+ is found via diffuse reflectance measurements and found to be 4.19 eV. The value of metallization criteria is less than unity which dictates the non-metallic nature of the synthesized phosphors. These results indicate that this phosphor is very suitable for use in solid-state lighting applications as a red light-emitting phosphor.
Publisher
Springer Nature B.V
Subject
