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用C离子的弹性反冲法测固体中氢分布
H DEPTH PROFILING IN SOLID BY ERD WITH C IONS
【摘要】 文章介绍了用1.7MV小串列加速器提供的4—7MeV多电荷C离子,采用弹性反冲法(ERD)分析了α-Si:H中氢元素的深度分布。计算表明,近表面处的深度分辨率为15-30nm,可探测深度100—700nm。探讨了入射能量和散射几何条件的优化问题。比较了几种分析方法的测量结果。
【Abstract】 Hydrogen depth profiling in α-Si:H is performed by Elastic Recoil Detection(ERD) with multicharged C ions at 2×1.7 MV Tandem Accelerator. Both experl-ment and computer simulation show the depth resolution of 15--30 nm in thenear-surface region. The optimization of the experimental conditions such asincident ions energy and scattering geometry are discussed.
【关键词】 氢;
氢的深度分布;
弹性反冲法;
【Key words】 Hydrogen; Depth profile of hydrogen; Elastic recoil detection technique;
【Key words】 Hydrogen; Depth profile of hydrogen; Elastic recoil detection technique;
【基金】 国家科学基金
- 【文献出处】 原子能科学技术 ,Atomic Energy Science and Technology , 编辑部邮箱 ,1990年03期
- 【被引频次】3
- 【下载频次】43