The effects of Cu dopant on the microstructure and non-ohmic electrical properties of ZnO varistors

Jiwei Fan; Xiaopeng Li; Zhenguo Zhang; Zhiqiang Jiao; Xiangyang Liu; Wenjing Zhang; Poonsuk Poosimma; Robert Freer

doi:10.4028/www.scientific.net/AMR.343-344.160

The effects of Cu dopant on the microstructure and non-ohmic electrical properties of ZnO varistors

Jiwei Fan, Xiaopeng Li, Zhenguo Zhang, Zhiqiang Jiao, Xiangyang Liu, Wenjing Zhang, Poonsuk Poosimma, Robert Freer

Research output: Contribution to journal › Article › peer-review

Abstract

The doping effects of Cu on the microstructure and non-ohmic electrical properties of ZnO varistors were studied. Addition of Cu2O can enhance the ZnO grain growth during sintering. The SEM and EDS results revealed that the added Cu mainly distributed in the grain boundary and spinel phases of ZnO varistors. The Cu2O addition increased the both of grain and grain boundary resistances. However it decreased the non-ohmic electrical characteristics of ZnO varistors, which is a good agreement with similar findings on Ag2O additions, but contrasts to the reports of good non-ohmic electrical property which found on binary Cu doped ZnO varistors. © (2012) Trans Tech Publications, Switzerland.

Original language	English
Pages (from-to)	160-165
Number of pages	5
Journal	Advanced Materials Research
Volume	343-344
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.343-344.160
Publication status	Published - 2012

Keywords

Cu doping
Microstructure
Non-ohmic Electrical Characteristics
ZnO varistor

Access to Document

10.4028/www.scientific.net/AMR.343-344.160

Cite this

@article{a5b0cc61fe0943c4bbb5b5f99a06e169,

title = "The effects of Cu dopant on the microstructure and non-ohmic electrical properties of ZnO varistors",

abstract = "The doping effects of Cu on the microstructure and non-ohmic electrical properties of ZnO varistors were studied. Addition of Cu2O can enhance the ZnO grain growth during sintering. The SEM and EDS results revealed that the added Cu mainly distributed in the grain boundary and spinel phases of ZnO varistors. The Cu2O addition increased the both of grain and grain boundary resistances. However it decreased the non-ohmic electrical characteristics of ZnO varistors, which is a good agreement with similar findings on Ag2O additions, but contrasts to the reports of good non-ohmic electrical property which found on binary Cu doped ZnO varistors. {\textcopyright} (2012) Trans Tech Publications, Switzerland.",

keywords = "Cu doping, Microstructure, Non-ohmic Electrical Characteristics, ZnO varistor",

author = "Jiwei Fan and Xiaopeng Li and Zhenguo Zhang and Zhiqiang Jiao and Xiangyang Liu and Wenjing Zhang and Poonsuk Poosimma and Robert Freer",

year = "2012",

doi = "10.4028/www.scientific.net/AMR.343-344.160",

language = "English",

volume = "343-344",

pages = "160--165",

journal = "Advanced Materials Research",

issn = "1022-6680",

publisher = "Trans Tech Publications",

}

TY - JOUR

T1 - The effects of Cu dopant on the microstructure and non-ohmic electrical properties of ZnO varistors

AU - Fan, Jiwei

AU - Li, Xiaopeng

AU - Zhang, Zhenguo

AU - Jiao, Zhiqiang

AU - Liu, Xiangyang

AU - Zhang, Wenjing

AU - Poosimma, Poonsuk

AU - Freer, Robert

PY - 2012

Y1 - 2012

N2 - The doping effects of Cu on the microstructure and non-ohmic electrical properties of ZnO varistors were studied. Addition of Cu2O can enhance the ZnO grain growth during sintering. The SEM and EDS results revealed that the added Cu mainly distributed in the grain boundary and spinel phases of ZnO varistors. The Cu2O addition increased the both of grain and grain boundary resistances. However it decreased the non-ohmic electrical characteristics of ZnO varistors, which is a good agreement with similar findings on Ag2O additions, but contrasts to the reports of good non-ohmic electrical property which found on binary Cu doped ZnO varistors. © (2012) Trans Tech Publications, Switzerland.

AB - The doping effects of Cu on the microstructure and non-ohmic electrical properties of ZnO varistors were studied. Addition of Cu2O can enhance the ZnO grain growth during sintering. The SEM and EDS results revealed that the added Cu mainly distributed in the grain boundary and spinel phases of ZnO varistors. The Cu2O addition increased the both of grain and grain boundary resistances. However it decreased the non-ohmic electrical characteristics of ZnO varistors, which is a good agreement with similar findings on Ag2O additions, but contrasts to the reports of good non-ohmic electrical property which found on binary Cu doped ZnO varistors. © (2012) Trans Tech Publications, Switzerland.

KW - Cu doping

KW - Microstructure

KW - Non-ohmic Electrical Characteristics

KW - ZnO varistor

U2 - 10.4028/www.scientific.net/AMR.343-344.160

DO - 10.4028/www.scientific.net/AMR.343-344.160

M3 - Article

SN - 1022-6680

VL - 343-344

SP - 160

EP - 165

JO - Advanced Materials Research

JF - Advanced Materials Research

ER -

The effects of Cu dopant on the microstructure and non-ohmic electrical properties of ZnO varistors

Abstract

Keywords

Access to Document

Fingerprint

Cite this