Impedance analysis, dielectric relaxation and modulus behaviour of ZnO-Sn2O3 ceramics

Chaari, Mariem; Belgacem, Raoudha Ben; Matoussi, Adel

doi:10.1016/j.jallcom.2017.07.295

Cited by 15 publications

(3 citation statements)

References 36 publications

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“…The semi-circle part of the curve shortened with an increase in Cu atomic percentage in the chitosan-Zn 1−x Cu x O film [ 61 ]. High resistivity was observed for the chitosan–ZnO thin film, which might have been due to more defects caused by the larger grain size [ 62 ]. The semicircle was attributed to the grain boundary and the straight line indicated electron transport at the thin electrode/electrolyte interface.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Corrosion Resistance Properties of Electroplated Chitosan-Zn1−xCuxO Composite Thin Films

et al. 2017

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Novel chitosan–zinc copper oxide (Zn1−xCuxO) composites were electrochemically synthesized through galvanostatic deposition. The prepared chitosan-based composite thin films were elaborately investigated to determine their structural, morphological, compositional, impedance, and corrosion properties. X-ray diffraction analysis was performed to reveal their structural orientation of composite thin films. Energy dispersive analysis by X-ray evidently confirmed the existence of Zn, Cu, and O in the composite thin films. Nyquist plots revealed that the chitosan-Zn1−xCuxO thin films had obvious semi-circular boundaries, and higher resistance was observed for chitosan-ZnO due to the grain boundary effect. Corrosion properties were evaluated using both an electrochemical method and the ASTM weight gain method, which revealed good corrosion rates of 34 and 35 × 10−3 mm/y, respectively, for chitosan-ZnO thin film.

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Section: Resultsmentioning

confidence: 99%

Evaluation of the Corrosion Resistance Properties of Electroplated Chitosan-Zn1−xCuxO Composite Thin Films

et al. 2017

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“…This model states that polycrystalline ceramics (MNPs) have a varied microstructure in which the insulating grain boundaries surrounding the semiconducting or conducting grains. During the application of an alternating electric field (AC) the charge carriers are going to be collected in the grain boundaries and hence building up the interfacial polarization at low frequency [33]. While, the second plateau may be due to the relaxation of grains itself.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Decontamination of ubiquitous harmful microbial lineages in water using an innovative Zn2Ti0.8Fe0.2O4 nanostructure: dielectric and terahertz properties

Nahrawy

Bakr

Hemdan

et al. 2019

Heliyon

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Many ubiquitous dangerous microbial lines could originate in different sources of polluted water and be distributed to tap water, which could cause multiple types of illnesses to humans and livestock. Despite enormous attempts to guarantee safety of potable water, these species are still regarded to be threated prevalent health issues and concerns. However, these species need a powerful disinfectant to be removed from contaminated water for receiving clean and healthy water. This study was therefore conducted to produce magnificent magnetic iron titanate zinc nano-particles (Zn2Ti0.8Fe0.2O4 MNPs) as a sophisticated approach for drinking water (DW) and wastewater purification. The identification of crystalline phase, dielectric and terahertz spectroscopy of iron zinc titanate nanostructure prepared via acidic sol-gel process and calcined at 800 °C. Results show that the formation of cubic structure for Zn2TiO4 phase, and the dielectric constant (εʹ) decreased with the higher frequency, tan (δ) has higher values at lower frequency and the conductivity increases relatively with frequency that attributes to the high resistive grain boundaries. Absorption coefficient, refractive index and dielectric properties of iron zinc titanate nano-particles was estimated via time domain-terahertz spectrometer and adjusted via the applied electric field. In particular, the Gram-negative bacteria were more prone than other microbes tested to the Magnetic Nano-Particles (MNPs). Results also was ascertained that the minimum inhibitory concentration (MIC) was 25 ppm at 30 min for E. coli and Salmonella enterica, 45 min for Listeria monocyteogens, Staphylococcus aureus, and Candida albicans and 60 min for Aspergillus niger with a noticeable bactericidal impact. Results exhibit that the MNPs explored are non-toxic and protected for individuals and the environment. MNPs can, therefore, be proposed as an expedient and impressive nano-scale applicant for inactivation during the drinking water and wastewater conservation of the prevailing dangerous microbes.

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“…The use of indium oxide in TCO applications is limits due to the low avability and high cost of indium, relatively low conductivity and chemical instability [8]. In addition, extensive works have been done on indium, tin, zinc oxides [8,9,10,11]. Due to the relatively low band gap and toxicity, CdO has not been studied as extensively as other oxides [12,13].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Different Ga Doping on Structural, Optical and Electrical Properties of CdO Films

Aydoğu

Çabuk²,

Çoban

2019

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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CdO and CdO:Ga films were produced using the ultrasonic spray pyrolysis method. The structural, optical and electrical properties of produced films were defined by x-ray diffraction pattern (XRD), UV-VIS spectrophotometer and electrical measurements, respectively. The XRD patterns show that all the films deposited at 275 ± 5 °C are in face center cubic polycrystalline structure. The optic band gaps of Ga doped films were obtained with the optical method and observed to change from 2.50 to 2.66 eV with the increase of Ga doping. Additionally, the resistivity, conductivity and I-V characteristics of the samples are investigated with four point and two point probe methods. It is clearly seen that the electrical properties of CdO have improved with the appropriate Ga doping. The best conductivity was obtained with 4% and 8% Ga doping of CdO films.

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Impedance analysis, dielectric relaxation and modulus behaviour of ZnO-Sn2O3 ceramics

Cited by 15 publications

References 36 publications

Evaluation of the Corrosion Resistance Properties of Electroplated Chitosan-Zn1−xCuxO Composite Thin Films

Evaluation of the Corrosion Resistance Properties of Electroplated Chitosan-Zn1−xCuxO Composite Thin Films

Decontamination of ubiquitous harmful microbial lineages in water using an innovative Zn2Ti0.8Fe0.2O4 nanostructure: dielectric and terahertz properties

The Effects of Different Ga Doping on Structural, Optical and Electrical Properties of CdO Films

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