Title :
Carrier mobility in LDPE at high temperature and pressure
Author :
Malec, D. ; Truong, V.H. ; Essolbi, R. ; Hoang, T.G.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
fDate :
4/1/1998 12:00:00 AM
Abstract :
Current peaks due to transient SCLC (space charge limited current) were observed in LDPE (low-density polyethylene) at 70°C. From the time at which the current peak occurs, carrier mobilities ranging from 5×10-15 to 7×10-14 m2/Vs were obtained. The mobility values obtained for LDPE depend on both applied field and hydrostatic pressure and verify hopping mechanism. The presence of space charge has been confirmed by analyzing discharge currents measurements
Keywords :
carrier mobility; hopping conduction; insulation testing; polyethylene insulation; space-charge-limited conduction; 70 degC; LDPE; applied field; carrier mobility; current peak; discharge current measurements; hopping mechanism; hydrostatic pressure; transient SCLC; Charge measurement; Current measurement; Electric variables measurement; Helium; Plastic insulation; Polyethylene; Polymers; Space charge; Temperature; Voltage;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
