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Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6)
In this paper, Sr(2)Ni(1−x)Zn(x)TeO(6) (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) double perovskite compounds were synthesised by the conventional solid-state method, and the structural, optical and dielectric properties were investigated. The Rietveld refinement of X-ray diffraction data shows that all com...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041436/ https://www.ncbi.nlm.nih.gov/pubmed/35496881 http://dx.doi.org/10.1039/d1ra03662a |
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author | Alias, Fatasya Izreen Hanim Rajmi, Rozilah Maulud, Mohd Fauzi Mohamed, Zakiah |
author_facet | Alias, Fatasya Izreen Hanim Rajmi, Rozilah Maulud, Mohd Fauzi Mohamed, Zakiah |
author_sort | Alias, Fatasya Izreen Hanim |
collection | PubMed |
description | In this paper, Sr(2)Ni(1−x)Zn(x)TeO(6) (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) double perovskite compounds were synthesised by the conventional solid-state method, and the structural, optical and dielectric properties were investigated. The Rietveld refinement of X-ray diffraction data shows that all compounds were crystallised in monoclinic symmetry with the I2/m space group. Morphological scanning electron microscopy reported that the grain sizes decreased as the dopant increased. The UV-vis diffuse reflectance spectroscopy conducted for all samples found that the optical band gap energy, E(g), increased from 3.71 eV to 4.14 eV. The dielectric permittivity ε′ values increased for the highest Zn-doped composition, Sr(2)Ni(0.2)Zn(0.8)TeO(6), being ∼1000 and ∼60 in the low- and high-frequency range, respectively. All samples exhibited low dielectric loss (tan δ ≤ 0.20) in the range of 10(4)–10(5) Hz frequency. Impedance measurement revealed that grain resistance decreased with enhancement in Zn content in the Sr(2)NiTeO(6) crystal lattice. |
format | Online Article Text |
id | pubmed-9041436 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90414362022-04-28 Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) Alias, Fatasya Izreen Hanim Rajmi, Rozilah Maulud, Mohd Fauzi Mohamed, Zakiah RSC Adv Chemistry In this paper, Sr(2)Ni(1−x)Zn(x)TeO(6) (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) double perovskite compounds were synthesised by the conventional solid-state method, and the structural, optical and dielectric properties were investigated. The Rietveld refinement of X-ray diffraction data shows that all compounds were crystallised in monoclinic symmetry with the I2/m space group. Morphological scanning electron microscopy reported that the grain sizes decreased as the dopant increased. The UV-vis diffuse reflectance spectroscopy conducted for all samples found that the optical band gap energy, E(g), increased from 3.71 eV to 4.14 eV. The dielectric permittivity ε′ values increased for the highest Zn-doped composition, Sr(2)Ni(0.2)Zn(0.8)TeO(6), being ∼1000 and ∼60 in the low- and high-frequency range, respectively. All samples exhibited low dielectric loss (tan δ ≤ 0.20) in the range of 10(4)–10(5) Hz frequency. Impedance measurement revealed that grain resistance decreased with enhancement in Zn content in the Sr(2)NiTeO(6) crystal lattice. The Royal Society of Chemistry 2021-09-27 /pmc/articles/PMC9041436/ /pubmed/35496881 http://dx.doi.org/10.1039/d1ra03662a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Alias, Fatasya Izreen Hanim Rajmi, Rozilah Maulud, Mohd Fauzi Mohamed, Zakiah Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title | Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title_full | Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title_fullStr | Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title_full_unstemmed | Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title_short | Structural, optical and dielectric properties of tellurium-based double perovskite Sr(2)Ni(1−x)Zn(x)TeO(6) |
title_sort | structural, optical and dielectric properties of tellurium-based double perovskite sr(2)ni(1−x)zn(x)teo(6) |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041436/ https://www.ncbi.nlm.nih.gov/pubmed/35496881 http://dx.doi.org/10.1039/d1ra03662a |
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