Title :
Correlation between charge injection and electroluminescence in polyethylene under prebreakdown AC field
Author :
Lebey, T. ; Laurent, C.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
Abstract :
The space charge injection (SCI) and electroluminescence (EL) threshold fields in low-density polyethylene were investigated using highly sensitive detection setups. It is shown that space-charge injection set in before electroluminescence, in apparent contradiction with recent results concerning epoxy resin (see T. Beumann et al. 1987). An exact correlation between EEL and ESCI in polyethylene samples is not found, but the two effects take place in the low MV/cm range. The EL field values must be overestimated since SCI occurring at fields between 1 and 2 MV/cm tends to decrease the apparent field magnitude at the electrode tip
Keywords :
electroluminescence; luminescence of organic solids; polymers; space-charge-limited conduction; apparent field magnitude; electrode tip; electroluminescence; low MV/cm range; polyethylene; prebreakdown AC field; space charge injection; Bonding; Electroluminescence; Electrons; Lattices; Luminescence; Polyethylene; Polymers; Space charge; Stress; Thermal degradation;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38464
