
1.中国科学技术大学,合肥
**现通讯地址:山东省青岛市青岛大学化学系。
**现通讯地址:山东省青岛市青岛大学化学系。
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周漪琴, 吴汉卿, 章吉祥.
Zhou Yiqin, Wu Hanqing, Chang Jixiang. THE STUDIES ON TRAPPING PHENOMENA OF PET ELECTRET BY γ IRRADIATION[J]. Journal of Radiation Research and Radiation Processing, 1988,6(1):17-20.
测定了非晶态及双轴拉伸聚对苯二甲酸乙二醇酯(PET)热驻极经γ辐照后热释电(TSC)谱图;观察了空间电荷峰变化规律。探索了PET陷阱本质及陷阱载流子的重组现象。鉴别出非晶态PET中主要载流子类型属空穴型。
The Thermally Stimulated Current (TSC) spectra of biaxial stretched polyethylene terephthalate (PET) electret were measue measured, which a had been irradiation by ,γ, rays at dose rate 1×10,4,Gy/h. The space charge peak's value and peak temperature are dramatically decreased with doses below 1×10,3,Gy and then tend to a certain value respectively. The mechanism of decreasing the trap depth has been investigated by means of the comparing with TSC spectra of amorphous PET electret. It has been confirmed that the main species of charge carriers of amorphous PET are the holes.
热释电驻极体空间电荷载流子类型初始载流子密度陷阱深度
Thermally Stimulated Current ElectretTrappingSpace chargeSpecies of charge carriersInitial density of charge carriers
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