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Optical and Quantum Electronics

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01.02.2020

Effect of Gamma radiation on structural and optical parameters of Sm₂O₃:Mn/PVA nanocomposite film

verfasst von: Zein K. Heiba, Mohamed Bakr Mohamed

Erschienen in: Optical and Quantum Electronics | Ausgabe 2/2020

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Abstract

Nanocomposite Sm₂O₃:Mn/PVA films were prepared by sol–gel and casting methods. The influence of low Gamma-radiation doses (γ-dose, 0–1000 Gy) on structural and optical characteristics of the Sm₂O₃:Mn/PVA nanocomposite was investigated by X-ray diffraction, scanning electron microscopy, UV–Vis. Spectrophotometry (200–1000 nm) and photoluminescence (550–750 nm at excitation of 360 nm) techniques. The UV absorption and transmittance spectra were affected by γ-doses. The direct and indirect energies gaps were decreased while the refractive index was enhanced with increased γ-doses. The effect of γ-doses on the dispersion parameters were studied in details using UV spectra. The photoluminescence studies revealed that the nanocomposite emitted red color and its intensity diminished by increased γ-doses, also the emitted peak shown a red shift with increasing of γ-doses.

Vorheriger Artikel Impact of amino acids, organic solvents and surfactants on azo-hydrazone tautomerism in Methyl Red: spectral-luminescent and nonlinear optical properties

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Titel: Effect of Gamma radiation on structural and optical parameters of Sm2O3:Mn/PVA nanocomposite film
verfasst von: Zein K. Heiba
Mohamed Bakr Mohamed
Publikationsdatum: 01.02.2020
Verlag: Springer US
Erschienen in: Optical and Quantum Electronics / Ausgabe 2/2020
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-020-2217-x

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