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Article Dans Une Revue Materials Research Bulletin Année : 2016

Structural, vibrational and photoluminescence properties of Sr(1-x)PbxMoO4 solid solution synthesized by solid state reaction

Résumé

In this paper, strontium lead molybdate Sr1-xPbxMoO4 polycrystalline samples with 0 ≤ x ≤ 1 were prepared by solid state preparation method at 1000 degrees C. These materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and micro-Raman spectroscopy. Their photo-luminescence responses were analyzed under X-ray excitation. Rietveld refinements indicate that all the materials present a scheelite-type tetragonal structure. Micro-Raman spectra confirmed the formation of the solid solution with a specific effect due to Sr-O-Mo and Pb-O-Mo links in the scheelite structure. SEM images showed modifications in the shapes and grain sizes as x increased. Broad photoluminescent emission bands were observed in the energy range 2.1-2.9 eV. The emission bands were decomposed into four gaussian components. The intensities of all components presented a strong maximum in the composition range 0.1 < x < 0.4

Domaines

Matériaux
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Dates et versions

hal-01872756 , version 1 (19-01-2023)

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Paternité - Pas d'utilisation commerciale

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Abdelali Hallaoui, A. Taoufyq, Madjid Arab, Bahcine Bakiz, Abdeljalil Benlhachemi, et al.. Structural, vibrational and photoluminescence properties of Sr(1-x)PbxMoO4 solid solution synthesized by solid state reaction. Materials Research Bulletin, 2016, 79, pp.121-132. ⟨10.1016/j.materresbull.2016.03.015⟩. ⟨hal-01872756⟩
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