Title :
Peak shift due to the electric field on PETP corona charged foils
Author :
Malmonge, José A. ; Ferreira, G.F.Leal ; Giacometti, José A. ; Moreno, R.A.
Author_Institution :
Inst. de Fisica e Quimica de Sao Carlos, Sao Paulo Univ., Brazil
Abstract :
Annealed PETP (polyethylene terephthalate) samples which are corona charged give only one open-circuit current peak on heating from room temperature, the thermograms being independent of the polarity and metal electrodes. However, the peak shifts to a lower temperature for increasing initial potential. These results indicate that an electric-field-activated conductivity is at work. Frozen free-volume charges may explain higher currents observed on the low-temperature part of the thermogram
Keywords :
corona; dielectric thin films; electric breakdown of solids; electronic conduction in insulating thin films; foils; polymer films; space charge; PETP corona charged foils; electric-field-activated conductivity; frozen free volume charges; initial potential; open-circuit current peak; peak shifts; polyethylene terephthalate; thermograms; Annealing; Circuits; Conductivity; Corona; Current measurement; Electrodes; Heating; Metallization; Performance evaluation; Temperature;
Conference_Titel :
Electrets, 1988. (ISE 6) Proceedings., 6th International Symposium on (IEEE Cat. No.88CH2593-2)
Conference_Location :
Oxford
DOI :
10.1109/ISE.1988.38590
