Investigation of charge injection threshold field in epoxy resin

Author

Miao He ; Dayuan Qiang ; Ning Liu ; Chen, George ; Lewin, Paul L.

Author_Institution

Comput. Sci. Dept., Univ. of Southampton, Southampton, UK

fYear

2015

fDate

7-10 June 2015

Firstpage

49

Lastpage

52

Abstract

In this paper, space charge formation in epoxy resin has been measured at different applied electric fields using the pulsed electroacoustic technique to reveal the charge injection threshold field. The influence of electrode material on the charge injection has also been investigated. It has been found that the threshold field value for negative charge injection is much lower than that of positive charges, and electrons are the dominant type of charge carrier in epoxy resin. Compared with aluminium, the sample with gold electrode shows a higher threshold field value and lower amount of charge injection. This observation can be attributed to a higher work function of the gold.

Keywords

gold; pulsed electroacoustic methods; resins; space charge; work function; Au; applied electric fields; charge carrier; charge injection threshold field; epoxy resin; gold electrode; gold work function; negative charge injection; pulsed electroacoustic technique; space charge formation; Electrodes; Reliability; Satellite communication; Space charge; PEA; epoxy resin; space charge; threshold;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference (EIC), 2015 IEEE

Conference_Location

Seattle, WA

Print_ISBN

978-1-4799-7352-1

Type

conf

DOI

10.1109/ICACACT.2014.7223594

Filename

7223594