Impedance spectroscopy studies of ErNbO4 synthesised by the sol–gel method
Source abstract
Abstract
In this work, we report the dielectric study of erbium niobate ceramic synthesised by the sol–gel method. X-ray diffraction patterns confirmed the presence of monoclinic ErNbO4, even at the lowest heat-treatment temperature. The frequency dependence dielectric study shows that the value of the dielectric constant, particularly at lower frequencies, is highly influenced by the secondary phase. Impedance spectroscopy analyses revealed a non-Debye relaxation phenomenon in the sample heat-treated at 800 °C. The Nyquist plot from the complex impedance spectrum showed only one semicircular arc, representing the grain effect in the electrical conduction. The modulus mechanism also indicates the non-Debye type of relaxation in the material, which is supported by impedance data, and confirms that the relaxation process is due to short-range motion of charge carriers. Relaxation times, extracted using the imaginary parts of complex impedance and modulus, were found to follow the Arrhenius law. The thermal evolution of the conductivity of the grains also presents an Arrhenius-type behaviour, revealing that charge carriers have to overcome different energy barriers while conducting and relaxing.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Nuclear materials and radiation effects
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References (30)
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1. Sarin P, Hughes RW, Lowry DR, Apostolov ZD, Kriven WM (2014) High-temperature properties and ferroelastic phase transitions in rare-earth niobates (LnNbO4). J Am Ceram Soc 97:3307–3319. https://doi.org/10.1111/jace.1309510.1111/jace.13095 ↗
2. Guo D, Zhou D, Li W-B, Pang L-X, Dai Y-Z, Qi Z-M (2017) Phase evolution, crystal structure, and microwave dielectric properties of water-insoluble (1–x)LaNbO4 – xLaVO4 (0 ≤ x ≤ 0.9) ceramics. Inorg Chem 56:9321–9329. https://doi.org/10.1021/acs.inorgchem.7b0146210.1021/acs.inorgchem.7b01462 ↗
3. Haugsrud R, Norby T (2006) Proton conduction in rare-earth ortho-niobates and ortho-tantalates. Nat Mater 5:193–196. https://doi.org/10.1038/nmat159110.1038/nmat1591 ↗
4. Kim DW, Kwon DK, Yoon SH, Hong KS (2006) Microwave dielectric properties of rare-earth ortho-niobates with ferroelasticity. J Am Ceram Soc 89:3861–3864. https://doi.org/10.1111/j.1551-2916.2006.01302.x10.1111/j.1551-2916.2006.01302.x ↗
5. Xia WS, Zhang SB, Tang TL, Wang Y, Shi LW (2019) Enhanced quality factors of SmNbO4 ceramics with MgO additive. Phys B Condens Matter 572:148–152. https://doi.org/10.1016/j.physb.2019.07.03010.1016/j.physb.2019.07.030 ↗
6. Tang TL, Xia WS, Zhang B, Wang Y, Li MX, Shi LW (2019) Optimization on quality factor of LaNbO4 microwave dielectric ceramics. J Mater Sci Mater Electron 30:15293–15298. https://doi.org/10.1007/s10854-019-01902-z10.1007/s10854-019-01902-z ↗
7. Zhang P, Feng Y, Li Y, Pan W, an Zong P, Huang M, Han Y, Yang Z, Chen H, Gong Q, Wan C (2020) Thermal and mechanical properties of ferroelastic RENbO4 (RE = Nd, Sm, Gd, Dy, Er, Yb) for thermal barrier coatings. Scr Mater 180:51–56. https://doi.org/10.1016/j.scriptamat.2020.01.02610.1016/j.scriptamat.2020.01.026 ↗
8. Zhang DL, Pun EYB (2004) X-ray diffraction study on formation of ErNbO4 powder. J Alloy Compd 370:315–320. https://doi.org/10.1016/j.jallcom.2003.09.12010.1016/j.jallcom.2003.09.120 ↗
9. Yu H, Liu J, Zhang W, Zhang S (2015) Ultra-low sintering temperature ceramics for LTCC applications: a review. J Mater Sci Mater Electron 26:9414–9423. https://doi.org/10.1007/s10854-015-3282-y10.1007/s10854-015-3282-y ↗
10. Jain A, Ong SP, Hautier G, Chen W, Richards WD, Dacek S, Cholia S, Gunter D, Skinner D, G Ceder, Persson KA (2013) Commentary: the materials project: a materials genome approach to accelerating materials innovation. APL Mater 1. https://doi.org/10.1063/1.481232310.1063/1.4812323 ↗
11. Da Silva CA, Miranda PEVDe (2015) Synthesis of LaAlO3 based materials for potential use as methane-fueled solid oxide fuel cell anodes. Int J Hydrog Energy 40:10002–10015. https://doi.org/10.1016/j.ijhydene.2015.06.01910.1016/j.ijhydene.2015.06.019 ↗
12. M Liu, D Wang (1995) Preparation of La1-zSrzCo1-yFeyO3-x thin films, membranes, and coatings on dense and porous substrates. J Mater Res 10:3211. https://doi.org/10.1557/JMR.1995.321010.1557/JMR.1995.3210 ↗
13. Belattar CBJ, Graça MPF, Costa LC, Achour ME (2010) Electric modulus-based analysis of the dielectric relaxation in carbon black loaded polymer composites. J Appl Phys 107:12411110.1063/1.3452366 ↗
14. Mather SA, Davies PK (1995) Nonequilibrium phase formation in oxides prepared at low temperature: fergusonite-related phases. J Am Ceram Soc 78:2737–2745. https://doi.org/10.1111/j.1151-2916.1995.tb08049.x10.1111/j.1151-2916.1995.tb08049.x ↗
15. Doebelin N, Kleeberg R (2015) Profex: a graphical user interface for the Rietveld refinement program BGMN. J Appl Cryst 48:1573–1580. https://doi.org/10.1107/S160057671501468510.1107/S1600576715014685 ↗
16. Toby BH (2006) R factors in Rietveld analysis: how good is good enough? Powder Diffr 21:67–70. https://doi.org/10.1154/1.217980410.1154/1.2179804 ↗
17. Iadonisi G, Cantele G, Chiofalo M (2014) Introduction to solid state physics and crystalline nanostructures. Springer, Milan, Italy10.1007/978-88-470-2805-0 ↗
18. Barthelmy D, Webmineral (2014) http://webmineral.com/. Accessed 12 May 2020
19. Ben Taher Y, Moutia N, Oueslati A, Gargouri M (2016) Electrical properties, conduction mechanism and modulus of diphosphate compounds. RSC Adv 6:39750–39757. https://doi.org/10.1039/c6ra05220g10.1039/c6ra05220g ↗
20. Lasia A (2005) Electrochemical impedance spectroscopy and its applications. Modern aspects of electrochemistry. Kluwer Academic Publishers, New York, USA p 143–248. https://doi.org/10.1007/0-306-46916-2_210.1007/0-306-46916-2_2 ↗
21. Macdonald JR (1987) Impedance spectroscopy: emphasizing solid materials and systems. Wiley. New York, USA. https://books.google.pt/books/about/Impedance_Spectroscopy.html?id=hblpQgAACAAJ&redir_esc=y. Accessed 28 Jun 2018
22. Zhao C, Zhao C, Werner M, Taylor S, Chalker P (2013) Dielectric relaxation of high-k oxides. Nanoscale Res Lett 8:456. https://doi.org/10.1186/1556-276X-8-45610.1186/1556-276X-8-456 ↗
23. Jodi H, Syahrial AZ (2017) Synthesis and electrochemical characterization of new Li2O-P2O5 compounds for solid electrolytes. Int J Technol 8:1516–1524. https://doi.org/10.14716/ijtech.v8i8.68110.14716/ijtech.v8i8.681 ↗
24. Almeida JS, Fernandes TSM, Sales AJM, Silva MAS, Júnior GFMP, Rodrigues HO, Sombra ASB (2011) Study of the structural and dielectric properties of Bi2O3 and PbO addition on BiNbO4 ceramic matrix for RF applications. J Mater Sci Mater Electron 22:978–987. https://doi.org/10.1007/s10854-010-0247-z10.1007/s10854-010-0247-z ↗
25. Devesa S, Graça MP, Henry F, Costa LC (2016) Dielectric properties of FeNbO4 ceramics prepared by the sol-gel method. Solid State Sci 61:44–50. https://doi.org/10.1016/j.solidstatesciences.2016.09.00510.1016/j.solidstatesciences.2016.09.005 ↗
26. Verkerk MJ, Middelhuis BJ, Burggraaf AJ (1982) Effect of grain boundaries on the conductivity of high-purity ZrO2Y2O3 ceramics. Solid State Ion 6:159–170. https://doi.org/10.1016/0167-2738(82)90083-210.1016/0167-2738(82)90083-2 ↗
27. Padmamalini N, Ambujan K (2016) Impedance and modulus spectroscopy of ZrO2–TiO2–V2O5 nanocomposite. Karbala Int J Mod Sci 2:272–275. https://doi.org/10.1016/j.kijoms.2016.10.00110.1016/j.kijoms.2016.10.001 ↗
28. Venkataraman BH, Varma KBR (2005) Microstructural, dielectric, impedance and electric modulus studies on vanadium—doped and pure strontium bismuth niobate (SrBi2Nb2O9) ceramics. J Mater Sci Mater Electron 16:335–344. https://doi.org/10.1007/s10854-005-1144-810.1007/s10854-005-1144-8 ↗
29. Gupta P, Mahapatra PK, Choudhary RNP (2020) Structural, dielectric, impedance, and modulus spectroscopy of BaSnO3-Modified BiFeO3. J Phys Chem Solids 137:109217. https://doi.org/10.1016/j.jpcs.2019.10921710.1016/j.jpcs.2019.109217 ↗
30. Kumar N, Patri SK, Choudhary RNP (2014) Frequency-temperature response of a new multiferroic. Process Appl Ceram 8:121–125. https://doi.org/10.2298/PAC1403121K10.2298/PAC1403121K ↗