Novel Sm3+ doped YCa4O(BO3)3 phosphors: Structural and, low and room temperature luminescent insights
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Dosyalar
Tarih
2024
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Yayıncı
Elsevier Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Inorganic phosphors, known for their ability to capture energy from various sources and emit visible light, have become essential in the development of advanced lighting and display technologies. This study explores YCa4O(BO3)3 (YCOB) as a potential host material for phosphors, focusing on the luminescent properties of YCOB phosphors doped with Sm3+ ions. The successful integration of Sm3+ ions into the YCOB host lattice is confirmed through structural characterization using X-ray diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Energy-Dispersive X-ray Spectroscopy (EDS). Photoluminescence (PL) studies reveal distinct emission spectra with Stark energy level splitting, indicating a cooperative effect between Y3+ and Sm3+ ions. Concentration quenching, mainly attributed to dipole-dipole (d-q) interactions, is observed at higher Sm3+ concentrations. Temperature-dependent PL measurements demonstrate thermal quenching at lower temperatures and increased emission intensity with higher laser power. Thermal quenching is explained by reduced lattice vibrations and electron-phonon interactions, leading to decreased radiative recombination of charge carriers. The CIE chromaticity data position the samples in the orange-red region, emitting vibrant orange-red light. This comprehensive investigation provides insights into the synthesis and luminescent properties of YCOB:Sm3+ phosphors, highlighting their potential applications in luminescent devices. © 2023 Elsevier Ltd
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Anahtar Kelimeler
CIE chromaticity; Temperature-dependent luminescence; XRD; YCa4O(BO3)3 (YCOB), Calcium compounds; Citrus fruits; Electron-phonon interactions; Emission spectroscopy; Fourier transform infrared spectroscopy; Ions; Phosphors; Quenching; Samarium compounds; X ray diffraction; CIE chromaticity; Energy; Inorganics; Luminescent property; Temperature dependent; Temperature-dependent luminescence; Thermal quenching; Visible light; X- ray diffractions; YCa4O(BO3)3 (YCOB); Luminescence; unclassified drug; yCa4O (BO3)3; phosphorus; Article; chemical analysis; chemical interaction; colorimetry; energy dispersive X ray spectroscopy; Fourier transform infrared spectroscopy; low temperature; luminescence; phosphorescence; photoluminescence; room temperature; synthesis; temperature dependence; vibration; X ray diffraction; article; colorimetry; dipole; electric potential; electron; genetic recombination; illumination; lamellar ichthyosis; laser; phonon; red light; structure analysis; temperature; X ray diffraction
