Title :
Space charge due to contact effects in Al-polyethylene terephthalate-Al systems: modeling and study by the thermally stimulated current method
Author :
Thielen, A. ; Niezette, J. ; Feyder, G. ; Vanderschueren, J.
Author_Institution :
Lab. of Phys. Chem., Liege Univ., Belgium
Abstract :
The Thermally Stimulated Depolarization Current method allowed us to emphasize the role played by aluminum-polyester contacts on the electrical properties of Metal-Polyethylene Terephthalate films-Metal systems. Assuming the existence of Schottky barriers at the Al-PET interfaces after heat treatment, the electronic band model permitted us to account for the nature and properties of the space charge in annealed PET films (1.5 to 12 μm), in a wide range of poling temperatures, times and fields
Keywords :
MIM structures; Schottky barriers; aluminium; annealing; dielectric depolarisation; dielectric polarisation; dielectric thin films; electrets; polymer films; space charge; thermally stimulated currents; 1.5 to 12 mum; Al; Al-polyester contacts; Al-polyethylene terephthalate films-Al; Schottky barriers; electrets; electrical properties; electronic band model; heat treatment; poling temperature; poling time; space charge; thermally stimulated depolarization current; Aluminum; Annealing; Cathodes; Dielectrics; Electrodes; Helium; Metallization; Positron emission tomography; Space charge; Temperature;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514788
