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Preparation and Electrical Properties of Er2O3-Doped ZnO Varistors
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Linxue WANG, Nenghui ZHAO, Jinfeng SU, Wenbin CAO
Journal of the Chinese Ceramic Society | 2023, 51(12) : 3059 - 3066
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Journal of the Chinese Ceramic Society | 2023, 51(12): 3059-3066
• Research Articles •
Preparation and Electrical Properties of Er2O3-Doped ZnO Varistors
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Linxue WANG, Nenghui ZHAO, Jinfeng SU, Wenbin CAO
Affiliations
  • Research Center for Semiconductor Materials and Devices, School of Arts and Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China

    • WANG Linxue (1991-), female, Ph.D., Lecturer. E-mail:

About Author:

WANG Linxue (1991-), female, Ph.D., Lecturer. E-mail:

Published: 2023-09-11 doi: 10.14062/j.issn.0454-5648.20230416
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The effect of Er2O3 doping on the microstructure and electrical properties of ZnO-Bi2O3-Sb2O3-Co2O3-MnO2-Cr2O3-SiO2 varistor was investigated. A part of Er is dissolved in the Bi-rich phase as doping Er2O3, which has a great influence on the grain boundary characteristics and electrical properties of ZnO varistors. The grain boundary resistivity decreases, the leakage current density increases, the double Schottky grain boundary barrier height and the nonlinear coefficient firstly increase and then decrease, and the breakdown field strength increases with increasing Er2O3 content from 0.09% to 0.35% (in mass fraction). The ZnO varistors obtained have a nonlinear coefficient of 54.4±1.5, a breakdown field strength of (470.1±2.8) V·mm-1, a leakage current density of (1.9±0.1) μA·cm-2, and a loss tangent of less than 0.03 at Er2O3 doping content of 0.27%, showing the optimum comprehensive electrical properties. The standard deviation of the performance parameters is small, indicating that the samples have a good reproducibility. This work provides a reference for the preparation of Er2O3-doped ZnO varistor ceramics with the excellent performance.

zinc oxide  /  varistor  /  erbium oxide doping
王林雪, 赵能慧, 苏锦锋, 曹文斌. Er2O3掺杂ZnO压敏陶瓷的制备及其电学性能. 硅酸盐学报, 2023 , 51 (12) : 3059 -3066 . DOI: 10.14062/j.issn.0454-5648.20230416
Linxue WANG, Nenghui ZHAO, Jinfeng SU, Wenbin CAO. Preparation and Electrical Properties of Er2O3-Doped ZnO Varistors[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (12) : 3059 -3066 . DOI: 10.14062/j.issn.0454-5648.20230416
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Year 2023 volume 51 Issue 12
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Article Info
doi: 10.14062/j.issn.0454-5648.20230416
  • Receive Date：2023-06-16
  • Online Date：2026-10-19
  • Published：2023-09-11
Article Data
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History
  • Received：2023-06-16
  • Revised：2023-07-18
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Affiliations
    Research Center for Semiconductor Materials and Devices, School of Arts and Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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