U.S.-Bulgaria Cooperative Research on Ion Beam Deposition of Two Component Films

美国-保加利亚关于两组分薄膜离子束沉积的合作研究

• 批准号: 9213861
• 负责人: John Rabalais
• 金额: $ 2.79万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9213861&HistoricalAwards=false
• 关键词: U.S.; Bulgaria; Cooperative; Research; Ion

This U.S.-Bulgaria research project between Dr. J. Wayne Rabalais and Dr. S. S. Todorov of the Bulgarian Academy of Sciences will study the mechanism of low energy ion beam deposition (IBD) of artificially structured materials. The focus is the fundamental ion- surface interactions, including the influence of substrate structure, defects, diffusion, annihilation, and temperature along with ion energy, type, and charge. Deposition of two-component films will be studied by using a new, unique, pulsed, dual-beam, mass- selected ion beam deposition system. The films will be characterized in situ by electron spectroscopy and ion scattering and ex situ by XRD, TEM, RBS, and Raman. The objectives are to determine the mechanism of ion beam synthesis of epitaxial and ordered structures and new materials with interesting electrical and/or mechanical properties. The goal is to understand and control ion beam processes for low temperature synthesis of new multicomponent materials and metastable solids. This work should lead to an improvement of our fundamental understanding of film growth processes that occur during deposition of hyperthermal species and the resulting film structure and properties. This project in materials science fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool resources in areas of strong mutual interest and competence.

这个美国-保加利亚研究项目之间的博士J.韦恩Rabalais S博士S.保加利亚科学院的托多罗夫将 研究了低能离子束沉积（IBD） 人工结构材料。 焦点是基本离子- 表面相互作用，包括衬底结构的影响， 缺陷、扩散、湮灭和温度沿着与离子 能量、类型和电荷。 双组分膜的沉积将 使用一种新的，独特的，脉冲的，双光束的，质量- 选择离子束沉积系统。 电影将是 通过电子光谱和离子散射原位表征 并通过XRD、TEM、RBS和拉曼进行非原位分析。 这些目标是 确定离子束合成外延层的机理， 有序结构和具有有趣的电性能的新材料 和/或机械性能。 目的是了解和 控制离子束低温合成新的 多组分材料和亚稳固体。 这项工作应 从而提高了我们对电影的基本理解 生长过程中发生的沉积超高温 物种和所得的膜结构和性质。 材料科学的这个项目实现了 促进科学知识的发展， 美国和东欧将联合收割机互补 在共同感兴趣的领域汇集人才和资源， 能力。