Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles
This article presents the structural and transport characteristics of hydrothermally synthesized LaF3 nanoparticles with an average crystallite size of 35nm. The phase formation of the material is confirmed by both X-ray diffraction and transmission electron microscopy techniques. In addition, phase...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2014-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4904949 |
| _version_ | 1830209975547330560 |
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| author | L. N. Patro K. Kamala Bharathi N. Ravi Chandra Raju |
| author_facet | L. N. Patro K. Kamala Bharathi N. Ravi Chandra Raju |
| author_sort | L. N. Patro |
| collection | DOAJ |
| description | This article presents the structural and transport characteristics of hydrothermally synthesized LaF3 nanoparticles with an average crystallite size of 35nm. The phase formation of the material is confirmed by both X-ray diffraction and transmission electron microscopy techniques. In addition, phase purity of the LaF3 nanoparticles is corroborated by micro-Raman spectroscopy studies. The complex impedance plots at different temperatures reveal that the conductivity is predominantly due to the intrinsic bulk grains and the conductivity relaxation is non-Debye in nature. The frequency variation of conductivity exhibits dispersion at higher frequencies that can be explained with the frame work of Almond-West formalism. The conduction process is controlled by the mobility of the charge carriers and the charge of transport of mobile fluoride ions occur through hopping mechanism. The scaling behavior of both frequency dependence of conductivity and complex impedance plots at different temperatures confirm that the relaxation mechanism of the mobile fluoride ions is independent of temperature. |
| first_indexed | 2024-12-18T05:17:57Z |
| format | Article |
| id | doaj.art-af805e1830d7488eb5a166ca2eddaa5e |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-18T05:17:57Z |
| publishDate | 2014-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-af805e1830d7488eb5a166ca2eddaa5e2022-12-21T21:19:43ZengAIP Publishing LLCAIP Advances2158-32262014-12-01412127139127139-1010.1063/1.4904949038412ADVMicrostructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticlesL. N. Patro0K. Kamala Bharathi1N. Ravi Chandra Raju2Department of Physics, Indian Institute of Technology Madras, Chennai, 600 036, IndiaMaterials Science and Engineering Division, National Institute of Standards and Technology (NIST), Gaithersburg 20899, USASchool of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia Campus, Brisbane 4072, AustraliaThis article presents the structural and transport characteristics of hydrothermally synthesized LaF3 nanoparticles with an average crystallite size of 35nm. The phase formation of the material is confirmed by both X-ray diffraction and transmission electron microscopy techniques. In addition, phase purity of the LaF3 nanoparticles is corroborated by micro-Raman spectroscopy studies. The complex impedance plots at different temperatures reveal that the conductivity is predominantly due to the intrinsic bulk grains and the conductivity relaxation is non-Debye in nature. The frequency variation of conductivity exhibits dispersion at higher frequencies that can be explained with the frame work of Almond-West formalism. The conduction process is controlled by the mobility of the charge carriers and the charge of transport of mobile fluoride ions occur through hopping mechanism. The scaling behavior of both frequency dependence of conductivity and complex impedance plots at different temperatures confirm that the relaxation mechanism of the mobile fluoride ions is independent of temperature.http://dx.doi.org/10.1063/1.4904949 |
| spellingShingle | L. N. Patro K. Kamala Bharathi N. Ravi Chandra Raju Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles AIP Advances |
| title | Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| title_full | Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| title_fullStr | Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| title_full_unstemmed | Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| title_short | Microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| title_sort | microstructural and ionic transport studies of hydrothermally synthesized lanthanum fluoride nanoparticles |
| url | http://dx.doi.org/10.1063/1.4904949 |
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