Title :
On the energy spectrum of electrically active defects in polyethylene terephthalate (PET) films
Author :
Gorokhovatsky, Yu. ; Temnov, D. ; Marat-Mendes, J.N. ; Dias, C.J. ; Das-Gupta, D.K.
Author_Institution :
Dept. of Phys., Herzen State Pedagogical Univ. of Russia, St. Petersburg, Russia
Abstract :
The TSD curves in PET films show two maxima: in the 80°C region (α-peak) and at 125°C (β-peak). From the thermally stimulated depolarization results in PET films the quasi-two-dimensional electrically active defect (EAD) distribution function is reconstructed, The distribution function maximum for the α-peak shifts to the region of lower values during the PET films depolarization in the ambient air at a pressure of 1100 mbar as compared to measurements in vacuum
Keywords :
defect states; dielectric depolarisation; electrets; high-pressure effects; polymer films; thermally stimulated currents; α-peak; β-peak; 80 to 125 C; PET films; TSD curves; ambient air; depolarization; electrically active defects; energy spectrum; polyethylene terephthalate films; quasi-two-dimensional electrically active defect distribution function; thermally stimulated depolarization; Circuits; Current measurement; Dielectric materials; Electrets; Plastic films; Polarization; Polyethylene; Polymer films; Positron emission tomography; Temperature;
Conference_Titel :
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-5025-1
DOI :
10.1109/ISE.1999.832056
