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

fYear

1994

fDate

7-9 Sep 1994

Firstpage

319

Lastpage

324

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1994. (ISE 8), 8th International Symposium on

Conference_Location

Paris

Print_ISBN

0-7803-1940-0

Type

conf

DOI

10.1109/ISE.1994.514788

Filename

514788