Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites
In this study, SrLa _1-x Nd _x LiTeO _6 ( x = 0.00, 0.25, 0.50, 0.75, 1.00) compounds were prepared using the solid-state method, and their structural, optical, dielectric and conductivity properties were investigated. The Rietveld refinement of x-ray diffraction (XRD) data shows that the compound...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abaa8e |
| _version_ | 1797746300607791104 |
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| author | M Z M Halizan Z Mohamed A K Yahya |
| author_facet | M Z M Halizan Z Mohamed A K Yahya |
| author_sort | M Z M Halizan |
| collection | DOAJ |
| description | In this study, SrLa _1-x Nd _x LiTeO _6 ( x = 0.00, 0.25, 0.50, 0.75, 1.00) compounds were prepared using the solid-state method, and their structural, optical, dielectric and conductivity properties were investigated. The Rietveld refinement of x-ray diffraction (XRD) data shows that the compound crystallizes in monoclinic symmetry (i.e. P2 _1 /n space group). The morphological scanning electron microscopy study reports a larger grain size when the dopant is added. The optical ultraviolet-visible light spectroscopy (UV-Vis) study reveals that the energy band gap decreases as the doping increases from x = 0.00 to 0.50. Dielectric studies using electrochemical impedance spectroscopy (EIS) characterization reveal the non-Debye trend of dielectric real permittivity ( ε′ ) with the enhancement of ε ′ at 1 MHz from x = 0.00 to 0.50. ε′ and the dielectric tangent losses (Tan δ ) show increment and decrement patterns, respectively, when the temperature is increased. The frequency-dependent conductivity ( σ _AC ) plot follows the universal power law at all temperatures, and the σ _AC behavior in SrLa _1-x Nd _x LiTeO _6 is due to the tunneling of polarons. |
| first_indexed | 2024-03-12T15:34:51Z |
| format | Article |
| id | doaj.art-e0e2bbb5c23345cd8e9834db2f16c937 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:51Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-e0e2bbb5c23345cd8e9834db2f16c9372023-08-09T16:16:28ZengIOP PublishingMaterials Research Express2053-15912020-01-017808630110.1088/2053-1591/abaa8eSimultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskitesM Z M Halizan0https://orcid.org/0000-0003-4436-7800Z Mohamed1A K Yahya2Faculty of Applied Sciences, Universiti Teknologi MARA , 40450, Shah Alam, Selangor, MalaysiaFaculty of Applied Sciences, Universiti Teknologi MARA , 40450, Shah Alam, Selangor, MalaysiaFaculty of Applied Sciences, Universiti Teknologi MARA , 40450, Shah Alam, Selangor, MalaysiaIn this study, SrLa _1-x Nd _x LiTeO _6 ( x = 0.00, 0.25, 0.50, 0.75, 1.00) compounds were prepared using the solid-state method, and their structural, optical, dielectric and conductivity properties were investigated. The Rietveld refinement of x-ray diffraction (XRD) data shows that the compound crystallizes in monoclinic symmetry (i.e. P2 _1 /n space group). The morphological scanning electron microscopy study reports a larger grain size when the dopant is added. The optical ultraviolet-visible light spectroscopy (UV-Vis) study reveals that the energy band gap decreases as the doping increases from x = 0.00 to 0.50. Dielectric studies using electrochemical impedance spectroscopy (EIS) characterization reveal the non-Debye trend of dielectric real permittivity ( ε′ ) with the enhancement of ε ′ at 1 MHz from x = 0.00 to 0.50. ε′ and the dielectric tangent losses (Tan δ ) show increment and decrement patterns, respectively, when the temperature is increased. The frequency-dependent conductivity ( σ _AC ) plot follows the universal power law at all temperatures, and the σ _AC behavior in SrLa _1-x Nd _x LiTeO _6 is due to the tunneling of polarons.https://doi.org/10.1088/2053-1591/abaa8edouble perovskitestructuralopticaldielectricconductivity |
| spellingShingle | M Z M Halizan Z Mohamed A K Yahya Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites Materials Research Express double perovskite structural optical dielectric conductivity |
| title | Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites |
| title_full | Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites |
| title_fullStr | Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites |
| title_full_unstemmed | Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites |
| title_short | Simultaneously improved dielectric, optical and conductivity properties of SrLa1−xNdxLiTeO6 double perovskites |
| title_sort | simultaneously improved dielectric optical and conductivity properties of srla1 xndxliteo6 double perovskites |
| topic | double perovskite structural optical dielectric conductivity |
| url | https://doi.org/10.1088/2053-1591/abaa8e |
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