Title :
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
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;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2008. ISDEIV 2008. 23rd International Symposium on
Conference_Location :
Bucharest
Print_ISBN :
978-973-755-382-9
Electronic_ISBN :
1093-2941
DOI :
10.1109/DEIV.2008.4676837
