LnPO4:Eu3+ nanoparticles: Role of host lattices on physiochemical and luminescent properties

LnPO4:Eu3+ (Ln = La, Gd and Y) nanoparticles (NPs) were prepared at low temperatures via a urea-based thermal decomposition method. X-ray diffraction pattern revealed a hexagonal single phase, high purity with an average crystalline size of 13.9, 14.89, and 18.7 nm for LaPO4:Eu, GdPO4:Eu, and YPO4:E...

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Bibliographic Details
Published inJournal of King Saud University. Science Vol. 36; no. 2; p. 103042
Main Authors Ansari, Anees A, Majeed Khan, M.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2024
Elsevier
Subjects
Crystallographic
Europium
Luminescent
Metal phosphates
Optical bandgap
Optical bandgap
Luminescent
Crystallographic
Europium
Metal phosphates
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Summary:LnPO4:Eu3+ (Ln = La, Gd and Y) nanoparticles (NPs) were prepared at low temperatures via a urea-based thermal decomposition method. X-ray diffraction pattern revealed a hexagonal single phase, high purity with an average crystalline size of 13.9, 14.89, and 18.7 nm for LaPO4:Eu, GdPO4:Eu, and YPO4:Eu NPs, respectively. Bandgap energies were calculated based on the measure absorption spectra are to be values 5.14, 5.03, and 4.90 eV for the LaPO4:Eu, GdPO4:Eu, and YPO4:Eu NPs, respectively. A comparative study suggested that the excitation and emission transitions were significantly higher in the GdPO4:Eu NPs and in comparison to the LaPO4:Eu and YPO4:Eu NPs. It implies the impact of the crystallinity, host lattice, and crystal symmetry, in which doped Eu3+-ion replaces the host cation and distorts the crystal symmetry.
ISSN:1018-3647
DOI:10.1016/j.jksus.2023.103042