Title :
Electroluminescence caused by electron impact
Author :
Shimizu, N. ; Nagura, N. ; Iemura, S. ; Takahashi, T.
Author_Institution :
Meijo Univ., Nagoya, Japan
Abstract :
EL properties were investigated in degassed specimens, air absorbed specimens and SF6 absorbed specimens. 1). EL starting voltage in the degassed specimen is lower than that in the SF 6 or the air absorbed specimens. The scattering of EL starting voltage seems small in the degassed specimen compared with the SF6 absorbed specimens. 2). It is considered that SF6 or O2 in polymer free volume captures electrons by attaching and decreases the number of electrons which contribute to EL. 3). In the air absorbed specimen. EL signal was not detected. The air absorbed specimens directly proceeded to tree initiation due to auto-oxidation without EL process
Keywords :
electroluminescence; insulation testing; organic insulating materials; polymers; trees (electrical); O2; SF6; SF6 absorbed specimens; air absorbed specimens; charge recombination; chromophores; degassed specimens; electrical insulation property; electroluminescence; electron impact; polymer free volume; polymer materials; starting voltage; tree initiation; Electric fields; Electrodes; Electroluminescence; Electrons; Needles; Polymers; Steel; Sulfur hexafluoride; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973731
