Space charge formation in non-cristalline polymers and GaSe by DBD In SF6 medium

Author

Alisoy, H.Z. ; Yeroglu, C. ; Koseoglu, M.

Author_Institution

Dept. of Electr. & Electron. Eng., Inonu Univ., Malatya

Volume

2

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

491

Lastpage

494

Abstract

In this study, we investigate the formation mechanism of space charges in PI - polyimide, PTFE - polytetrafluoroethylene, PET - polyethylene terephtalate and GaSe(Sn)-GaSe doped with (0.05 at%) Sn which are exposed to dielectric barrier discharge (DBD) in SF₆ medium. The expressions for the concentration of trapped electrons in materials, electrical field strength and total charge are derived by solving total current equation at stationary state. Space charges are determined experimentally by using thermally stimulated depolarization current (TSDC) method, and TSDC spectrums are illustrated for investigated materials.

Keywords

III-VI semiconductors; dielectric depolarisation; electron traps; gallium compounds; insulating materials; plasma materials processing; polymers; selenium compounds; space charge; DBD; GaSe:Sn; PET; PTFE; SF₆; SF₆ medium; TSDC spectrum; dielectric barrier discharge; electrical field strength; insulating material; noncrystalline polymer; polyethylene terephtalate; polyimide; polytetrafluoroethylene; space charge; stationary state; thermally stimulated depolarization current method; total charge; total current equation; trapped electrons; Dielectric materials; Electron traps; Equations; Gases; Polyethylene; Polyimides; Polymers; Positron emission tomography; Space charge; Tin;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 2008. ISDEIV 2008. 23rd International Symposium on

Conference_Location

Bucharest

ISSN

1093-2941

Print_ISBN

978-973-755-382-9

Electronic_ISBN

1093-2941

Type

conf

DOI

10.1109/DEIV.2008.4676837

Filename

4676837