Title :
Simultaneous thermally stimulated luminescence and depolarization current in low density polyethylene
Author :
Markiewicz, A. ; Balbachas, D.V. ; Fleming, R.J.
Author_Institution :
Sch. of Appl. Sci., Monash Univ. Coll. Gippsland, Churchill, Vic., Australia
Abstract :
Thermally stimulated luminescence and thermally stimulated depolarization current (TSD) measurements were made simultaneously on low-density polyethylene samples 0.175 mm thick, carrying evaporated gold electrodes. The sample were DC-polarized at room temperature, cooled to -190°C, and X-irradiated with the field still applied, and then heated in short-circuit at 3 K/min. It was shown that the space-charge transport component of the TSD current between -190 and 30°C is negligible, charge injection begins around -10°C and increases rapidly with increasing temperature, and the injected charge is transported through the amorphous regions of the sample to the opposite electrode
Keywords :
X-ray effects; luminescence of organic solids; polymers; space charge; thermally stimulated currents; thermoluminescence; -190 to 30 degC; Au; DC polarisation; X-ray irradiation; amorphous regions; charge injection; depolarization current; injected charge; low density polyethylene; room temperature; space-charge transport component; thermally stimulated depolarization current; thermally stimulated luminescence; Crystallization; Current measurement; Electrodes; Gold; Heating; Luminescence; Nitrogen; Photomultipliers; Polarization; Temperature;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167286