Journal of Optoelectronical Nanostructures، جلد ۴، شماره ۳، صفحات ۴۷-۵۸

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عنوان انگلیسی Ab–initio study of the electronic and optical traits of Na0.5Bi0.5TiO3 nanostructured thin film
چکیده انگلیسی مقاله The electronic, and optical properties of rhombohedral Na0.5Bi0.5TiO3nanostructured thin film have been studied by the first–principle approach. Densityfunctional theory (DFT) has been employed to calculate the fundamental properties ofthe layers using full–potential linearized augmented plane–wave (FPLAPW) method. A2×2×1 supercell was constructed with two vacuum slabs on top and down of thesupercell. A geometry optimization was performed by PBE method. The optimized thinfilm structure was used for the intended calculations. As well, the reflectance, dielectricfunction, refractive index, of the thin film were calculated in the UV–vis region. Resultsshowed very well consistency with the available experimental and theoretical reports.The optical conductivity also followed a similar trend to that of the dielectric constants.Energy loss function of the modeled compound was also evaluated. The evaluated lossfunction showed sharp peaks in UV-vis region and followed a steady state in IR, MIRand FIR parts of spectrum.
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نویسندگان مقاله Mohammadreza Askaripour Lahiji |
Department of applied mathematics, Astaneh Ashrafieh Branch, Islamic Azad University, Astaneh Ashrafieh, Iran

Ali Abdolahzadeh Ziabari |
Nano Research Lab, Lahijan Branch, Islamic Azad University, P.O. Box: 1616, Lahijan, Iran


نشانی اینترنتی http://jopn.miau.ac.ir/article_3619_d82c86c5a4c88faac24219065f714cba.pdf
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