Title :
Electrical properties of ultra thin evaporated polypropylene films
Author :
Ochiai, S. ; Maeda, A. ; Ogawa, T. ; Takagi, T. ; Ieda, M. ; Mizutani, T.
Author_Institution :
Dept. of Electr. Eng., Aichi Inst. of Technol., Yakusa, Toyota, Japan
Abstract :
A ultrathin polypropylene film (PP film) is deposited on a glass substrate from an evaporating source in vacuum. The temperature of the glass substrate is kept at 100°C during the deposition. The thin PP film is about 100Å in thickness. The film shows a self-healing breakdown in the high field region, and the electrode area gradually decreases. The electric strength of the film was 12.2MV/cm after self-healing breakdown. Its value is higher by a factor 1.7 than that of a conventional film. The conduction current in the ultrathin film is ohmic in the low field region and increases steeply by tunneling injection in the high field region
Keywords :
electric breakdown; electric strength; electrical conductivity; high field effects; organic insulating materials; polymer films; 100 angstrom; 100 degC; conduction current; electric properties; electric strength; electrode area; glass substrate; high field region; low field region; ohmic conduction; self-healing breakdown; temperature; tunneling injection; ultra thin evaporated polypropylene films; Capacitance; Glass; Plastic insulation; Polymer films; Rough surfaces; Semiconductor thin films; Substrates; Surface roughness; Thickness measurement; Transistors;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378956
