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Journal of Materials Science: Materials in Electronics

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01.03.2019

Effect of Sm³⁺, Bi³⁺ ion doping on the photoluminescence and dielectric properties of phytosynthesized LaAlO₃ nanoparticles

verfasst von: S. Pratibha, N. Dhananjaya, S. R. Manohara, L. S. Reddy Yadav

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 7/2019

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Abstract

The LaAlO₃, LaAlO₃:Sm³⁺ (1 mol%) and LaAlO₃:Sm³⁺:Bi³⁺ (1 mol%) nanoparticles were synthesized by phytocombustion synthesis using novel fuel E. tirucalli plant latex. The structure and morphological studies are carried out using various analytical techniques such as powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and diffuse reflectance spectroscopy. PL emission spectra reveal the luminescence properties of the nanoparticles, effectively excited by near UV wavelength (405 nm). Effect of dopant and co-dopant on dielectric properties of LaAlO₃ nanoparticles has been studied at room temperature. Results show that the incorporation of Bi³⁺ co-dopant leads to decrease in dielectric constant. The parameters like loss tangent, real and imaginary part of relative permittivity of LaAlO₃, LaAlO₃:Sm³⁺ and LaAlO₃:Sm³⁺:Bi³⁺ nanoparticles, decreases with increasing frequencies. The complex impedance spectrum analysis along with grain and grain boundary contributions were explained using Cole–Cole plot.

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Titel: Effect of Sm3+, Bi3+ ion doping on the photoluminescence and dielectric properties of phytosynthesized LaAlO3 nanoparticles
verfasst von: S. Pratibha
N. Dhananjaya
S. R. Manohara
L. S. Reddy Yadav
Publikationsdatum: 01.03.2019
Verlag: Springer US
Erschienen in: Journal of Materials Science: Materials in Electronics / Ausgabe 7/2019
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI: https://doi.org/10.1007/s10854-019-00986-x

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