ArticleJournal of fluorescence2026
Spectral Studies of Sm
Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- CaLuminescence : the journal of biological and chemical luminescence · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, Sm3+-doped magnesium germanate (Mg2GeO4) nanophosphors were synthesized using a rapid solution combustion method. Rietveld refinement of the doped-Mg2GeO4 sample revealed an orthorhombic crystal structure. Scanning electron microscopy (SEM) images of the nanophosphors revealed predominant spherical morphology with uniform size distribution. High-resolution transmission electron microscopy (HRTEM) analysis showed well-resolved lattice fringes with an interplanar spacing of ~ 0.24 nm, indexed to the (121) plane. The slight variation in the energy band gap (Eg) from 4.21 to 4.12 eV with increasing dopant concentration was clearly witnessed. Photoluminescence (PL) emission studies under 409 nm excitation wavelength exhibited strong red emission centered around 665 nm, corresponding to the 4G5/2→6H9/2 transition of Sm3+ ions in the host lattice. The optimal luminescence intensity was observed in the sample doped with 3 mol % of Sm3+ ions. The higher doping concentrations beyond 3 mol % led to concentration quenching, which decreased the luminescence intensity. The type of interaction responsible for quenching was identified as electric dipole-dipole based on Dexter’s theory. Time-resolved PL measurements revealed a tri-exponential decay behavior, with an average lifetime (τavg) of ~ 0.72 ms. Furthermore, the quantum efficiency (QE) of the optimized phosphor was found to be ~ 59.27%. The Commission Internationale de l’Eclairage (CIE) diagrams confirmed emission in the orange-red region, suitable for white light-emitting diodes applications. The obtained results of the prepared phosphors validated their applicability as red-emitting components in solid-state lighting.
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Registered trials
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