Charge dynamics as revealed by pulse discharge current spectra in polymer films

Author

Feihu Zheng ; Chen Lin ; Yewen Zhang ; Zhenlian An

Author_Institution

Shanghai Key Lab. of Special Artificial Microstructure Mater. & Technol., Tongji Univ., Shanghai, China

fYear

2011

fDate

6-10 Sept. 2011

Firstpage

503

Lastpage

505

Abstract

Space charge dynamics were studied by analyzing the pulse discharge current spectra in polymer film. Polymer samples with aluminum-metalized electrodes on both sides were subjected to negative DC field of 200-400 MV/m for 1-10 minutes. The subsequent short circuit current by connecting the two sides was monitored by AC current probe P6022 (Tektronix). The time coefficient of the decreasing oscillating current was found to be a changeable parameter. The periods of oscillating current almost are a constant. These results were thought to relate to charge injection and charge traps features.

Keywords

discharges (electric); polymers; short-circuit currents; space charge; AC current probe; aluminum metalized electrodes; charge injection; charge trap; negative DC field; oscillating current; polymer films; pulse discharge current spectra; short circuit current; space charge dynamics; Discharges (electric); Polymer films; Polymers; RLC circuits; Resistors; Space charge; oscillating discharge; space charge polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on

Conference_Location

Kyoto

Print_ISBN

978-4-88686-074-3

Type

conf

DOI

10.1109/ISEIM.2011.6826323

Filename

6826323