Effect of vanadium substitution on the dielectric and electrical conduction properties of SrTiO<sub>3</sub> ceramics

Mantry, Snigdha Paramita; Yadav, Abhinav; Fahad, Mohd.; Sarun, P.M.

doi:10.1088/2053-1591/aab234

Cited by 14 publications

(11 citation statements)

References 17 publications

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“…A first evaluation and analysis of the experimental data was performed with the statistical program R (https://www.r-project.org, accessed on 1 April 2022 ), in order to detect outlier data and to select the most precise and accurate reference data. The finally applied reference data are taken from the references [8,9,14,16,17,[20][21][22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: Experimental Reference Datamentioning

confidence: 99%

“…De Souza [14] published a comprehensive review of oxygen diffusion in undoped SrTiO 3 and related perovskite oxides that illustrates the relationship between defect chemistry, diffusion, and conductivity. There are some references regarding B-site substituted SrTiO 3 with V [15][16][17], but they are mainly related to the application of SrTiO 3 -based ceramics such as thermoelectrics, solar cells, and sensors. However, such phases can also be used as stable gas separation membranes suitable for long-term application [6].…”

Section: Introductionmentioning

confidence: 99%

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The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

et al. 2022

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The aim of this work is to predict suitable chemical compositions for the development of new ceramic oxygen gas separation membranes, avoiding doping with toxic cobalt or expensive rare earths. For this purpose, we have chosen the system Sr1−xBax(Ti1−y−zVyFez)O3−δ (cubic perovskite-type phases). We have evaluated available experimental data, determined missing crystallographic information using bond-valence modeling and programmed a Python code to be able to generate training data sets for property predictions using machine learning. Indeed, suitable compositions of cubic perovskite-type phases can be predicted in this way, allowing for larger electronic conductivities of up to σe = 1.6 S/cm and oxygen conductivities of up to σi = 0.008 S/cm at T = 1173 K and an oxygen partial pressure pO2 = 10−15 bar, thus enabling practical applications.

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Section: Experimental Reference Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

et al. 2022

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“…V 5+ ion as a donor dopant was also considered to substitute Ti site in SrTiO 3 . 331 Some Ti 4+ will change into Ti 3+ because of the doping of V 5+ in SrTiO 3 ceramics. The maximum value of permittivity (∼500) was detected in SrTi 0.95 V 0.05 O 3 composition.…”

Section: Chemical Reviewsmentioning

confidence: 99%

“…Strontium titanate (SrTiO 3 ) possessing a perovskite structure is interesting because of its high degree of tenability, high permittivity, and low dielectric loss. ,,− It is actually one of the incipient ferroelectrics, and only permittivity increasing can be found with temperature down to 0 K. Recently, SrTiO 3 has attracted many researchers’ attention owing to a series of outstanding physical properties: (1) two-dimensional electron gas formed at the interfaces between SrTiO 3 and other oxides, (2) superconductivity at lower temperatures, , and (3) ferroelectricity without any intentional doping . Presently, it is thought that the defects (such as V O , cation vacancy, antisite defects, and so on) are intimately related to these phenomena.…”

Section: Incipient Ferroelectricsmentioning

confidence: 99%

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Defects and Aliovalent Doping Engineering in Electroceramics

et al. 2020

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Since the positive influences of defects on the performance of electroceramics were discovered, investigations concerning on defects and aliovalent doping routes have grown rapidly in the fields of inorganic chemistry and condensed matter physics. In this article, we summarized the types of defects in electroceramics as well as characterization tools of defects and highlighted the effects of intrinsic and extrinsic defects on the material performances with the emphasis on dielectric, ferroelectric, and piezoelectric properties. We mainly introduced defect related theoretical simulation and experimental results in several typical incipient ferroelectrics, ferroelectrics, and antiferroelectrics. Hence, the influences of defects on the crystal lattice were summed up, and then the main physical mechanisms were highlighted. Particularly, the performance enhancements of aliovalently doped electroceramics were also evaluated and reviewed. Finally, the outlook and challenges were discussed on the basis of their current developments. This article covers not only an overview of the state-of-the-art advances of defects and aliovalent doping routes in electroceramics but also the future prospects that may open another window to tune the electrical performance of electroceramics via intentionally introducing certain defects.

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Investigation on the impedance spectroscopy and electrical conduction mechanism in $$\hbox {SrTi}_{1-x}\hbox {V}_{x}\hbox {O}_3$$ SrTi 1 - x

Mantry

Sarun

2019

J Mater Sci: Mater Electron

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Effect of vanadium substitution on the dielectric and electrical conduction properties of SrTiO₃ ceramics

Cited by 14 publications

References 17 publications

The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

Defects and Aliovalent Doping Engineering in Electroceramics

Investigation on the impedance spectroscopy and electrical conduction mechanism in $$\hbox {SrTi}_{1-x}\hbox {V}_{x}\hbox {O}_3$$ SrTi 1 - x

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Effect of vanadium substitution on the dielectric and electrical conduction properties of SrTiO3 ceramics

Cited by 14 publications

References 17 publications

The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

The Development of New Perovskite-Type Oxygen Transport Membranes Using Machine Learning

Defects and Aliovalent Doping Engineering in Electroceramics

Investigation on the impedance spectroscopy and electrical conduction mechanism in $$\hbox {SrTi}_{1-x}\hbox {V}_{x}\hbox {O}_3$$ SrTi 1 - x

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Effect of vanadium substitution on the dielectric and electrical conduction properties of SrTiO₃ ceramics