Title :
Radiation induced trapping nature of polyester electret
Author :
Zhou, Yiqin ; Xu, Haiyan ; Zhang, Jixiang
Author_Institution :
Qingdao Univ., China
Abstract :
The main species of charge carriers in amorphous and biaxial stretched polyethylene naphthalate dicarboxylate (PEN) films have been identified. The sign transition of main species and shallowing of trap levels after γ-irradiation have been observed. The sign transition point has been detected in the biaxial stretched PEN γ-irradiated. Irradiation effect on the structure of molecular chains and supramolecular structure of polymer electret causes the change of distribution of trap levels within the energy gap, from which the shift of sub-Fermi level results
Keywords :
Fermi level; electrets; electron traps; gamma-ray effects; polymer films; γ-irradiation; amorphous PEN film; biaxial stretched PEN film; charge carriers; mean trap level; molecular chain structure; polyester electret; polyethylene naphthalate dicarboxylate; sign transition; sub-Fermi level; supramolecular structure; Amorphous materials; Charge carriers; Electrets; Electrodes; Plastic films; Polyethylene; Polymers; Solids; Spine; Thermal resistance;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578047
