Title :
Charge trapping sites in spherulitic polypropylene
Author :
Ikezaki, Kazuo ; Yagishita, Akihiko ; Yamanouchi, Hisashi
Author_Institution :
Fac. of Sci. & Technol., Keio Univ., Yokohama, Japan
Abstract :
Charged areas of positively corona-charged spherulitic polypropylene films were visualized with photoionized dye vapor. From visualized charge patterns, location for charge trapping sites for a low temperature TSC bands BL and a high temperature band BH , which are observed above room temperature in spherulitic polypropylene were determined: traps for BL and BH exist mainly in the peripheral and central parts of spherulites, respectively
Keywords :
deep levels; dielectric thin films; electrets; electric breakdown; polymer films; space charge; thermally stimulated currents; charge trapping sites; charged areas; low temperature TSC bands; photoionized dye vapor; positively corona-charged spherulitic polypropylene films; spherulitic polypropylene; visualized charge pattern; Counting circuits; Crystallization; Electric breakdown; Electrodes; Optical films; Optical microscopy; Polymers; Space charge; Temperature; Visualization;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514807
