Steadily Decreasing Power Loss of a Double Schottky Barrier Originating from the Dynamics of Mobile Ions with Stable Interface States

Cheng, Zhuolin; Hou, Zongke; Wang, Yao; Men, Guo; Wu, Kangning; Li, Jianying; Lin, Ying

doi:10.1103/physrevapplied.17.034042

Cited by 31 publications

(13 citation statements)

References 36 publications

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“…2. For the sample aged in nitrogen, the increase in power loss follows the aging pattern of instable ZnO varistor ceramics, which show a reduction in barrier height φb, according to the thermionic emission theory [25,30]…”

Section: Transition Of the Power Lossmentioning

confidence: 93%

“…where A * =30 A cm -2 K -2 is the effective Richard constant, q is the elementary charge, ξb = 0.067 eV is the bulk Fermi level relative to the conduction band, k is the Boltzmann constant, T is the absolute temperature, and U is the applied voltage. According to the DIR model [25,26], the power loss trend is the result of competition between donor ion redistribution and the consumption of the interface states.…”

Section: Transition Of the Power Lossmentioning

confidence: 99%

“…Electrical parameters of α, Eb, and JL show rapid recovery in the first 2 h, and subsequently approach their unaged values at 509 h. The recovery thereby indicates the existence of stable interface states in stable ZnO varistor ceramics. The minor variations in J-E curves and electrical parameters result from the donor redistribution effect in depletion layers [25,26].…”

Section: Transition Of the Power Lossmentioning

confidence: 99%

“…However, the aging of stable ZnO varistor ceramics cannot be explained by this classic model. Facing this challenge, we recently proposed a donor ion redistribution (DIR) model and simulated the carrier transport in a DSB by including the effect of donor redistribution with stable interface states at GBs [25,26]. The decreasing power loss and evolution of J-E characteristics of stable samples were theoretically reproduced during the aging.…”

Section: Introductionmentioning

confidence: 99%

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Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary

Cheng¹,

Li²,

Long³

et al. 2023

Journal of Advanced Ceramics

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Highly stable ZnO varistor ceramics with steadily decreasing power loss have been put into applications in electrical and electronic systems for overvoltage protections, even with the absence of general understandings on their aging behaviors. In this paper, we investigated their aging nature via conducting comparative dc aging experiments both in air and in nitrogen, during which variations of electrical properties and interface properties were measured and analyzed. Notably, continuously

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Section: Transition Of the Power Lossmentioning

confidence: 93%

Section: Transition Of the Power Lossmentioning

confidence: 99%

Section: Transition Of the Power Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary

Cheng¹,

Li²,

Long³

et al. 2023

Journal of Advanced Ceramics

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“…Owing to the enormously growing demand of urban power supply, significant challenges have been inevitably put upon the long-term stability of the power system [1][2][3][4], where cable insulation without doubt plays a crucial part in ensuring its safe operation. Cross-linked polyethylene (XLPE) has been widely applied as the main insulation material for power cables owing to its outstanding electric, physicochemical, and mechanical properties [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Correlation between antioxidant depletion kinetic model and ageing behaviour of cross‐linked polyethylene cable insulation

Zheng

Long

et al. 2022

High Voltage

Self Cite

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A concise kinetic model catering for the antioxidant reaction of thermally aged crosslinked polyethylene (XLPE) cable insulation before its abrupt performance deterioration is proposed for life prediction and condition assessment. The alternating current breakdown strength, elongation at break, carbonyl index, and pyrolysis activation energy of XLPE insulation are found to consistently display an abrupt change at a certain point of ageing time. This is strongly correlated to the depletion of the antioxidant whose content gradually decreases with ageing time and drops to a critical value, after which the abrupt degradation of the above macroscopic performances happens. Based on the simplified chain reactions of XLPE during thermal-oxidative ageing, a concise kinetic model about antioxidant prediction is accordingly established by solving the chemical kinetics equations. It indicates that the antioxidant content decays with the reciprocal of time before the abrupt degradation occurs. Results of antioxidant content predicted by the kinetic model at different temperatures matches well with the experimental results, and its reliability can also be proved by the Arrhenius relationship of the obtained results. The kinetic model proposed herein demonstrates satisfying conciseness and thus can be highly feasible in ageing condition assessment and life predicting of XLPE insulation.

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Transition of the Long-Term Stability of Stable ZnO Varistors Due to the Elevated Aging Temperature

Zhu,

Liao,

Liu

et al. 2023

Lecture Notes in Electrical Engineering

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Steadily Decreasing Power Loss of a Double Schottky Barrier Originating from the Dynamics of Mobile Ions with Stable Interface States

Cited by 31 publications

References 36 publications

Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary

Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary

Correlation between antioxidant depletion kinetic model and ageing behaviour of cross‐linked polyethylene cable insulation

Transition of the Long-Term Stability of Stable ZnO Varistors Due to the Elevated Aging Temperature

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