State-Selected Ion Reactions on Surfaces

表面上的状态选择离子反应

• 批准号: 8921784
• 负责人: Dennis Jacobs
• 金额: $ 21.83万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8921784&HistoricalAwards=false
• 关键词: State; Selected; Ion; Reactions; Surfaces

This grant is in the general field of analytical and surface chemistry and in the subfield of dynamics of chemical reactions at surfaces. Professor Dennis Jacobs of the University of Notre Dame will study the interaction of low energy dioxygen and nitrogen oxide ions with clean single crystal surfaces of silver, silicon and gallium arsenide. The roles of the ion initial energy and geometry of the scattering on the reaction of the ion with the surface will be determined. This work will be important in understanding the processing of semiconductor materials for devices. Vibrational and rotational state resolution of the primary ion will be accomplished with resonance enhanced multiphoton ionization methods. This will allow production of hyperthermal ions for scattering and reaction across the surfaces of the silver, silicon and gallium arsenide. Microscopic dynamics of these reactions will be determined as a function of the ion initial conditions.

该资助属于分析和表面化学的一般领域以及表面化学反应动力学的子领域。 圣母大学的丹尼斯·雅各布斯教授将研究低能双氧和氮氧化物离子与干净的银、硅和砷化镓单晶表面的相互作用。 将确定离子初始能量和散射几何形状对离子与表面反应的作用。 这项工作对于理解器件半导体材料的加工非常重要。 初级离子的振动和旋转状态分辨率将通过共振增强多光子电离方法来完成。 这将允许产生高温离子，用于银、硅和砷化镓表面的散射和反应。 这些反应的微观动力学将被确定为离子初始条件的函数。