M. Gleeson, T. Nuver, J. Lourenço, A. Moutinho, J. Los, A. Kleyn
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引用次数: 0
摘要
我们测量了320 eV Ar+束入射下全氟聚醚液体聚合物表面发射离子的能量和角分布。阴离子分布几乎完全由F?组成。大量的高能F?产生后坐力，这可归因于多次碰撞过程。这些高能后坐力的产生表明了一个非常开放的表面结构，这使得Ar+和聚合物的单个官能团之间的硬(小冲击参数)碰撞成为可能。散射Ar+仅在小的总散射角下观测到。
We have measured the energy and angular distribution of the ions emitted from a perfluoropolyether liquid polymer surface due to an incident 320 eV Ar+ beam. The anion distributions are comprised almost exclusively of F?. Substantial amounts of high-energy F? recoils are produced, which can be attributed to multiple-collision processes. The production of these high-energy recoils indicates a very open surface structure, which allows hard (small impact parameter) collisions between Ar+ and individual functional groups of the polymer. Scattered Ar+ is only observed for small total scattering angles.
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