Photoelectric Emission and Contact Charging of Vacuum-UV Irradiated Polymers
Photoelectric Emission and Contact Charging of Vacuum-UV Irradiated Polymers
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真空-紫外辐照聚合物的光电发射和接触充电
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
Y. Murata
中科院分区：
文献类型：
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作者：
S. Kittaka;Y. Murata
用能量hν<10.74eV的真空紫外光预辐照高密度聚乙烯、聚丙烯和尼龙6，发现它们的光电发射显著增加。根据预辐照产生的产额谱变化，我们对每种聚合物的表面陷阱分布进行了粗略估计。聚乙烯的表面陷阱密度最大，尼龙6的表面陷阱密度最小。辐照过的聚合物在与金属或聚合物接触时，往往比未辐照过的聚合物产生更多的正电荷。预辐照对荷电倾向的影响是由于紫外辐照引起的表面态分布的变化。聚乙烯由于其表面陷阱密度最大，带电倾向变化最大。
Photoelectric emission of high-density polyethylene, polypropylene and nylon 6 is found to increase considerably through pre-irradiation with vacuum UV of energy hν<10.74 eV. From the change of yield spectrum by pre-irradiation, we made a rough estimate of the surface-trap distribution of each polymer. Polyethylene has the largest density of surface trap of the three, and nylon 6 has the smallest. Irradiated polymers have a tendency to generate a more positive charge than non-irradiated ones when they come in contact with metals or polymers. This effect of pre-irradiation on the charging tendency is due to the change of the surface-state distribution caused by UV-irradiation. Polyethylene has the largest change of charging tendency because its density of surface trap is the largest of the three.