Properties of the metal--polymer interface observed with space-charge mapping techniques
A space-charge mapping technique was used to measure the space charge and internal electric fields in metal--poly(ethylene terephthalate)--metal samples subjected to electric field stressing. From these results the role of electronic injection and transport in the observed electrical properties of capacitor structures could be inferred. Below breakdown fields, there was no evidence that the dark current can be attributed to electronic processes. As breakdown fields were approached, a decrease in the injected space charge trapped adjacent to the electrode was observed. This behavior was attributed to the onset of tunneling into high-energy electronic states in the polymer. This process may produce large current densities leading to dielectric breakdown.
- Research Organization:
- Sandia National Laboratories, Albuquerque, New Mexico 87185
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5820486
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 60:2; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360404* -- Materials-- Polymers & Plastics-- Physical Properties-- (-1987)
BREAKDOWN
CHARGE DISTRIBUTION
CHARGED-PARTICLE TRANSPORT
CURRENT DENSITY
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELECTRONIC STRUCTURE
ESTERS
JUNCTIONS
MATERIALS
MIM JUNCTIONS
MYLAR
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PLASTICS
POLYESTERS
POLYMERS
RADIATION TRANSPORT
SEMICONDUCTOR JUNCTIONS
SPACE CHARGE
SYNTHETIC MATERIALS
TUNNEL EFFECT