Grain growth kinetics of Er2O3 doped ZnO-V2O5 based varistor ceramics

Roy, Samarpita; Roy, Tufan; Das, Debdulal

doi:10.1016/j.ceramint.2019.08.232

Cited by 33 publications

(16 citation statements)

References 91 publications

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“…115 Another vital challenge to fabricate high-performance varistors is to minimize the grain coarsening during the sintering of oxide combinations. 122 Furthermore, upgrading the transparency of the CdO-dependent TCO without influencing the conductivity is another major challenge for researchers due to the inverse relationship between each them. Thus, without influencing others, it has not been possible to change or improve one of these properties individually.…”

Section: Challenges Of Using Reosmentioning

confidence: 99%

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Hossain

Ahmed

Khan

et al. 2021

ACS Appl. Electron. Mater.

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Rare earth oxides (REOs) are deemed important from both industrial implementation and research insight perspectives. One of the most conspicuous attributes of REOs is sensing, which contributes significantly to the development of diversified and robust systems of sensors and detector devices. However, there has not been any organized review that has pointed out critical insights from the sensor, detector, and electronic device perspectives that can invoke further studies to investigate the prospective and commercially relevant areas to date. To address this limitation, this review undertakes a focused report approach. From this concise yet comprehensive review, it has been prominent that the most significant contributions to the sensing and detecting fields by the REOs are in electrochemical, temperature, humidity, radiation, gas, and biosensors. Moreover, in terms of electronic device development, REOs have had a significant impact on memory devices, metal oxide semiconductors, dielectric materials, capacitors, energy storage devices, and so on. Furthermore, one of the key findings of the study is that the REOs have flexible doping (e.g., Er3+, Yb3+, Y3+, etc.) capability combined with other host materials such as HfO2 film, SiO2 stacks, TiO2, SnO2 nanostructures, etc., which will likely make REO-based electrochemical sensor and biosensor development the most promising sector in the coming years. Despite the impressive aspects, biocompatibility issues in several biological and biomedical systems along with the hygroscopic nature of REOs in electronic devices remain as concerns. However, these issues can be addressed by the advancement of intricate technologies such as targeted manipulation of the electronic configuration of REOs, multifarious doping experiments to obtain alternative mechanisms, etc. to obtain superior biocompatibility, and device development systems that are noninvasive to the environment. From the commercialization front, memory devices and energy storage devices will be the focusing points for large-scale investors due to improved mechanical (i.e., Young’s modulus, intrinsic stress, etc.) and electrical (i.e., high dielectric constant, resistivity, relative permittivity, etc.) properties, while REO-based metal oxide semiconductor and capacitor development is likely to be research-oriented for the next few years before making the eventual move to futuristic applications at a large industrial scale. In short, this review reports a substantial number of relevant studies that will pave the way for further experimental and computational investigations on REOs and their sensor, detector, and electronic device aspects.

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Section: Challenges Of Using Reosmentioning

confidence: 99%

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Hossain

Ahmed

Khan

et al. 2021

ACS Appl. Electron. Mater.

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“…Electrical properties of ZnO based varistor ceramics are largely dependent on the sintering temperature, atmosphere and cooling rates, which are further correlated with grain size distribution and height of DSBs at GBS. Therefore, a number of studies about the sintering process mainly focused on the microstructural evolution, grain growth kinetics and phase formation of ZnO based ceramics [15][16][17][18][19]. Leite et al [18] found that the densifying process in ZnO-Bi2O3 based ceramics was controlled by the formation and decomposition of the Zn2Bi3Sb3O14 pyrochlore phase.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Intrinsic and Extrinsic Electron Traps at Grain Boundary during Sintering ZnO Based Varistor Ceramics

Xie¹,

Wang

2022

Materials

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In this paper, evolution of microstructures, electrical properties and defects of the double Schottky barrier during the sintering process were investigated by quenching ZnO varistor ceramics at different sintering stages. It was found that morphology of the samples changed little when the temperature was below 800 °C. Remarkable enhancement of the Schottky barrier height and electrical properties took place in the temperature range between 600 °C and 800 °C. The Bi-rich intergranular layer changed from β phase to α phase. The interfacial relaxation at depletion/intergranular layers became detectable in the samples. Meanwhile, a distinct relaxation loss peak from electron trapping of interface states was observed instead of two dispersed ones. It indicated that the differences among the Schottky barriers in ZnO varistor ceramics became smaller with the process of sintering, which was also supported by the admittance spectra. In addition, oxygen vacancy was found more sensitive to the sintering process than zinc interstitial. The results could provide guidance for fine manipulating the Schottky barrier and its underlying defect structures by optimizing sintering process.

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“…Different oxide semiconductors, such as ZnO (Moghim, Mosavat, & Ranjbar, 2016; Zhao, Hu, Chen, Xie, & He, 2016), WO 3 (Liu et al, 2017), and Al 2 O 3 (Song, 2017; Xu et al, 2019), are utilized as varistors, which are semiconductor devices with optimal nonlinear and optical properties. Several studies have observed the effects of structural and processing conditions on the electrical behaviors of varistors (Funahashi et al, 2017; Roy, Roy, & Das, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Meng, Wu, Yang, Hu, and He (2018) reported that additive of the rare earth potential (RE) oxides (RE = Er, Y, Dy) enhanced nonlinear and breakdown voltage behaviors of varistor samples (Roy, Das, & Roy, 2019). Considerable studies have shown that Er 2 O 3 added leads to improved V b (Roy, Das, & Roy, 2018), enhanced nonlinear coefficient (Jiang, Peng, Zang, & Fu, 2013), better stability for DC stress (Roy, Roy, & Das, 2019), and diminished leakage current (Xu et al, 2012) for ZnO varistor samples. However, most of these researches are significantly concentrated to investigate the impact of Er 2 O 3 additives on the electrical behaviors of zinc oxide samples.…”

Section: Introductionmentioning

confidence: 99%

Structural, nonlinear electrical characteristics, and stability against DC‐accelerated aging stress behavior of Er‐doped 20 nm ZnO–Bi₂O₃–Mn₂O₃‐based varistors

Sendi

2021

Microscopy Res & Technique

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In this research, ZnO–Bi2O3–Mn2O3 varistors manufactured from 20 nm ZnO powder and doped with different amounts of Er2O3 were fabricated via the conventional ceramic processing method. The effect of various Er2O3 concentrations (0.5–2.0 mol%) on the sintered density, structural improvement, and nonlinear behavior of the 20 nm ZnO–Bi2O3–Mn2O3 varistors was discussed. Different Er2O3 concentrations exerted considerable influence on the varistors. The addition of large amounts of Er2O3 led to the inhibition of grain growth by increasing the amount of the Er2O3‐rich spinel phase. X‐ray diffraction analysis showed that the addition of Er2O3 to the varistor systems led to the development of Er2O3‐rich phases during sintering. During sintering, the considerable surface area of the nanoparticle powder resulted in numerous interactions in the surfaces of the ceramics manufactured from 20 nm ZnO powder. The electrical behaviors of the varistors were substantially influenced by Er2O3. E1 mA evidently increased from 2,144.7 to 5,482.2 V/mm with the increment in doping amount. The nonlinear coefficient also dramatically increased with the increase in Er2O3 content. The ZnO nanoparticle–Bi2O3–Mn2O3 varistors doped with 1.0–2.0 mol% Er2O3 possessed high voltage and nonlinearity and were stable against DC‐accelerated aging stress.

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Grain growth kinetics of Er2O3 doped ZnO-V2O5 based varistor ceramics

Cited by 33 publications

References 91 publications

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Evolution of Intrinsic and Extrinsic Electron Traps at Grain Boundary during Sintering ZnO Based Varistor Ceramics

Structural, nonlinear electrical characteristics, and stability against DC‐accelerated aging stress behavior of Er‐doped 20 nm ZnO–Bi₂O₃–Mn₂O₃‐based varistors

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Grain growth kinetics of Er2O3 doped ZnO-V2O5 based varistor ceramics

Cited by 33 publications

References 91 publications

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Recent Progress of Rare Earth Oxides for Sensor, Detector, and Electronic Device Applications: A Review

Evolution of Intrinsic and Extrinsic Electron Traps at Grain Boundary during Sintering ZnO Based Varistor Ceramics

Structural, nonlinear electrical characteristics, and stability against DC‐accelerated aging stress behavior of Er‐doped 20 nm ZnO–Bi2O3–Mn2O3‐based varistors

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Product

Resources

About

Structural, nonlinear electrical characteristics, and stability against DC‐accelerated aging stress behavior of Er‐doped 20 nm ZnO–Bi₂O₃–Mn₂O₃‐based varistors