MRI/RUI:Acquisition of Surface Preparation Instrumentation for Surface Physics Studies of Epitaxial Growth on Metallic Surfaces

MRI/RUI：购置表面处理仪器，用于金属表面外延生长的表面物理研究

• 批准号: 0320908
• 负责人: Kelly Roos
• 金额: $ 10.6万
• 依托单位: Bradley University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0320908&HistoricalAwards=false
• 关键词: MRI; RUI; Acquisition; Surface; Preparation

The grant provides support for the acquisition of surface preparation instrumentation to be used in surface physics studies of epitaxial growth on metallic surfaces. This new instrumentation will be integrated into an ultra high vacuum (UHV) preparation chamber that is part of the existing variable temperature scanning tunneling microscope (VT-STM) system at Bradley University. This new instrument capability will allow the research efforts at Bradley to be expanded to include surface physics studies of metallic surfaces by the addition of sample cleaning/preparation and sample analysis systems. The sample cleaning instrumentation includes an ion gun and a turbomolecular pumping station for sputtering-cleaning of metallic surfaces, and an effusion cell for surface alteration via molecular beam epitaxy. The sample analysis includes an electron gun and hemispherical energy analyzer for surface chemical composition determination, and a low energy electron diffractometer (LEED) for surface structural determination. Research projects include measurement of interlayer diffusion in metallic homoepitaxial systems, the interaction of metalloquinolates with metallic surfaces, the initial nucleation and growth of thin films on atomically clean metal surfaces, and fundamental tribological studies of friction and wear at the nano-scale which are of interest to local area industry. Subsequent research could improve understanding of fundamental atomic scale processes governing the formation of ultra thin films on surfaces. Such understanding could lead to the ability to develop optimal ultra thin film fabrication techniques necessary for building faster and smaller nano-electronic devices. The established undergraduate program in materials research and education at Bradley University will be greatly enhanced through the acquisition of the new instrumentation and the associated research activities. A significant impact will be the establishment of unique collaborations between scientists in academia, with a fundamental approach to nanomaterials research, and engineers in industry, with a practical, applied science approach. Collaborations with industrial partners will be established to efficiently convert fundamental research results into practical technological applications, and further provide undergraduate students with excellent work related training experiences in applied science.

拨款资助购置表面预处理仪器，以进行金属表面外延生长的表面物理研究。这种新的仪器将被集成到一个超高真空（UHV）准备室，这是现有的变温扫描隧道显微镜（VT-STM）系统的一部分，在布拉德利大学。这种新的仪器能力将使布拉德利的研究工作扩大到包括金属表面的表面物理研究，增加了样品清洁/制备和样品分析系统。样品清洗仪器包括一个离子枪和一个用于金属表面清洗的离子分子泵站，以及一个用于通过分子束外延进行表面改性的泻流单元。样品分析包括用于表面化学成分测定的电子枪和半球形能量分析仪，以及用于表面结构测定的低能电子衍射仪（LEED）。研究项目包括金属同质外延系统中的层间扩散测量，金属喹啉与金属表面的相互作用，原子级清洁金属表面上薄膜的初始成核和生长，以及当地工业感兴趣的纳米尺度摩擦和磨损的基础摩擦学研究。随后的研究可以提高对控制表面上超薄膜形成的基本原子尺度过程的理解。 这种理解可能导致开发最佳超薄膜制造技术的能力，这些技术是构建更快、更小的纳米电子器件所必需的。在材料研究和教育在布拉德利大学既定的本科课程将大大提高通过收购新的仪器和相关的研究活动。一个重大的影响将是建立独特的合作之间的科学家在学术界，与纳米材料研究的基本方法，和工程师在工业界，与实用的，应用科学的方法。将与工业合作伙伴建立合作关系，以有效地将基础研究成果转化为实际技术应用，并进一步为本科生提供与应用科学相关的优秀工作培训经验。