Investigation of effects of charge injection and intrinsic ionic carriers in low-density polyethylene and cross-linked polyethylene

The effects of charge carrier injection and intrinsic ionic carriers on the conduction process in superclean low-density polyethylene and cross-linked polyethylene (LDPE and XLPE) and the associated development of space charge are investigated. The carrier mobility is measured directly by space char...

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Bibliographic Details
Published in:Journal of applied physics 2020-04, Vol.127 (16)
Main Authors: Su, Rui, Wu, Kai, Dissado, L. A., Cheng, Chuanhui, Dodd, S. J., Lv, Zepeng, Zhong, Lisheng, Wang, Xia
Format: Article
Language:English
Subjects:
Applied physics
Carrier density
Carrier injection
Carrier mobility
Charge injection
Cross-linked polyethylene
Crosslinking
Current carriers
Low density polyethylenes
Polyethylene
Space charge
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Summary:The effects of charge carrier injection and intrinsic ionic carriers on the conduction process in superclean low-density polyethylene and cross-linked polyethylene (LDPE and XLPE) and the associated development of space charge are investigated. The carrier mobility is measured directly by space charge measurements in a double- and triple-layer structure. It is shown that the difference between superclean LDPE and XLPE in the field-dependence of the current density results from the dominance of ions in XLPE introduced by cross-linking as compared to injected carriers in the case of superclean LDPE.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5142318