Journal
AIP ADVANCES
Volume 13, Issue 5, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0147932
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Zn(1-x)CrxAl2O4 (x = 0.00, 0.05, 0.10, 0.20) nanoparticles were synthesized using gelatin as a polymerization agent. The structure and morphology were analyzed by X-ray diffraction and scanning electron microscopy. The results showed that the samples were polycrystalline and crystallized in a cubical spinel phase. Increasing the percentage of Cr led to a decrease in crystallite size and energy bandgap. The Z-scan approach was used to study the nonlinear absorption coefficient and refractive index of the samples.
In this research, Zn(1-x)CrxAl2O4 (x = 0.00, 0.05, 0.10, 0.20) nanoparticles were prepared by a simple and green chemistry synthesis using gelatin as a polymerization agent. X-ray diffraction technique and scanning electron microscopy imaging were used to analyze the structural and morphological properties of the samples. X-ray diffraction results revealed that all samples were polycrystalline and crystallized in a cubical spinel phase. With increasing the x from 0.00 to 0.20, the main Bragg peaks shift to smaller angles, and the crystallite size and energy bandgap of samples decrease as well. The nonlinear absorption coefficient, beta, and nonlinear refractive index, n(2), of Zn(1-x)CrxAl2O4 were meticulously studied by the Z-scan approach. The orders of n(2) and beta are 10(-7) and 10(-4) cm/W, respectively. The saturable absorption and the self-defocusing effect are the main factors in the appearance of beta and n(2), respectively. The experimental results confirmed that increasing the percentage of Cr caused nonlinear coefficients to increase. (c) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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