An Alternative Description for the Electronegativity Difference in Binary Ionic Solids

Lima, Heveson; Ferreira, Daniele Mendonça; Souza, Adelmo S.; Santos, M.A. Couto dos

doi:10.21577/0103-5053.20200193

Cited by 2 publications

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“…The Morse potential is used to describe the predominant covalent portion of the B–O chemical bond, which has 43% ionic character. 32 Thus, Buckingham's potential alone is not sufficient to describe this interaction correctly.…”

Section: Resultsmentioning

confidence: 99%

“…The Morse potential is used to describe the predominant covalent portion of the B-O chemical bond, which has 43% ionic character. 32 Thus, Buckingham's potential alone is not sufficient to describe this interaction correctly. Verhoef and den Hartog, 33 in a molecular dynamics study, developed Buckingham and three-body potential parameters for describing both phases of B 2 O 3 (trigonal and orthorhombic), but this presents several difficulties regarding their ability to reproduce the experimental structural data.…”

Section: Interatomic Potentials Of Mgb 4 Omentioning

confidence: 99%

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Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Section: Interatomic Potentials Of Mgb 4 Omentioning

confidence: 99%

Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach

et al. 2022

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“…Hence, it is evident that the introduction of Eu-dopant led to a reduction in the optical bandgap, making these materials conducive for application in optoelectronic devices. Since Eu 2 O 3 possesses a higher electron affinity compared to ZnO [41], there exists an electron contribution situated at a lower Fermi level for the Eu: ZnO films. Consequently, this variance in electron affinity contributes to a redshift in the exciton recombination.…”

Section: Optical Analysis 41 Linear Studiesmentioning

confidence: 99%

Exploration of the optical characteristics in sol-gel synthesized europium-doped zinc oxide thin films for potential optoelectronic use: a comprehensive characterization approach

Tahir,

Bujran,

Want

2024

Phys. Scr.

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In this study, we present our findings on the spin coating deposition of Zinc-Oxide (ZnO) nanowire arrays and Europium doped ZnO (Eu3+: ZnO) nanostructure thin films. These arrays were grown on soda lime (silica) coated glass substrate. We conducted a comprehensive analysis of the structural and optical properties of the as-synthesized nanostructures. Our characterization techniques included X-ray diffraction, FESEM, Raman spectroscopy, and photoluminescence. The XRD results indicate the incorporation of Europium (Eu3+) ions into the crystalline lattice, possibly substituting Zn2+ ions. The incorporation of Europium (Eu3+) doping resulted in decreased crystalline size determined by Scherrer’s equation, decreasing from 48.0 nm to 28 nm demonstrates a decrease in defects within the films. We have thoroughly examined the optical characteristics of both Europium-doped and pure ZnO thin films through a systematic study. The optical properties were assessed by analyzing the absorption spectra within the wavelength range of 200 to 2000 nm. The film exhibits an impressive 80% transparency, particularly noteworthy for window layer application. The incorporation of Eu3+ into host matrix also led to a reduction in the optical bandgap Raman Shift analysis further substantiated the alterations in the optical properties of the films. Upon the inclusion of Eu3+a distinct 5D0–7F2 transition originating from the Eu3+ ions, occurring at approximately 612 nm was detected. The refractive index(n), extinction coefficient (k) and all other associated parameters were found to be impacted by the addition of Europium (Eu3+) to ZnO thin films. The refractive index dispersion relation has been explored using a single oscillator model. Furthermore, the non-linear optical susceptibility (ᵪ) and non-linear refractive index were considered using semi-empirical relationships based on the linear optical parameters. The Europium (Eu3+) doping in ZnO leads to an increase in the ᵪ3 value, elevating it from 1.26*10-11 to 1.34 *10-11 e.s.u. These findings indicate the potential for Eu-doped ZnO nanostructures to serve as a promising platform for the development of efficient multispectral light-emitting diodes (LEDs) and optical devices.

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An Alternative Description for the Electronegativity Difference in Binary Ionic Solids

Cited by 2 publications

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Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach

Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach

Exploration of the optical characteristics in sol-gel synthesized europium-doped zinc oxide thin films for potential optoelectronic use: a comprehensive characterization approach

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An Alternative Description for the Electronegativity Difference in Binary Ionic Solids

Cited by 2 publications

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Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB4O7compound: an atomistic simulation approach

Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB4O7compound: an atomistic simulation approach

Exploration of the optical characteristics in sol-gel synthesized europium-doped zinc oxide thin films for potential optoelectronic use: a comprehensive characterization approach

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Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach

Elucidating the effect of intrinsic defects on the dosimetric properties of the MgB₄O₇compound: an atomistic simulation approach