MRI: Acquisition of a X-ray Photoelectron Spectrometer for Multidisciplinary Materials Research at the University of Michigan

MRI：密歇根大学购买 X 射线光电子能谱仪用于多学科材料研究

• 批准号: 0420785
• 负责人: Joerg Lahann
• 金额: $ 37.74万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0420785&HistoricalAwards=false
• 关键词: MRI; Acquisition; ray; Photoelectron; Spectrometer

The project will lead to the acquisition of a X-ray photoelectron spectroscopy (XPS) instrument, which represents a major advance in commercially available instrumentation. XPS has become a critical technique in the characterization of the chemical composition, oxidation and bonding states in various materials, including polymers, catalysts, metals, and semiconductors. The XPS instrument will provide real time chemical state and elemental imaging capabilities using the full range of pass energies and multi-point analysis from either real time or scanned images without the need for sample translation. The instrumentation further comes with the ability to obtain data over a large field of view, while maintaining photoelectron and Auger peak positions. The initial research foci of the instrument will include fundamental studies of: designer surfaces for biomedical applications; advanced micro-probes for neural prostheses; chemo-mechanical nanopatterning of polymer substrates for cell culture; surface-modified nano-fibrous scaffolds for tissue engineering applications; surface-modified microfabricated chemical analysis devices; controlled anchoring of DNA molecules at chemically tailored surfaces; coaxial semiconductor nanowires; smart surfaces assembled from molecular switches; directed self assembly of nanostructures by focused ion beam patterning; fuel processors for PEM fuel cells; lean NOx traps for automotive emission control; semiconductor alloy surfaces; surfaces and interfaces for electronic devices; and GaInNAs for high efficiency solar cells. The instrument will also have broad impact upon the research and educational infrastructure at U of M. Most faculty involved in the project have Undergraduate Research Opportunities Program (UROP) and Research Experience for Undergraduates (REU) students in their research groups actively working on characterization of materials. The instrument will be used in summer research projects for minority high school students and young women. For example, a number of students from under-represented groups participating in the NASA Summer High School Apprenticeship Program (SHARP) have worked on projects with instruments at the University of Michigan's Electron Microbeam Analysis Laboratory (EMAL), which will be the home of the new XPS instrument. As soon as the proposed instrument is installed, it will be included in this program. The project will lead to the acquisition of a X-ray photoelectron spectroscopy (XPS) instrument with advanced capabilities. XPS has become a critical technique in the surface characterization of various materials, including polymers, catalysts, metals, and semiconductors. The XPS instrument will enable the real time chemical state and elemental imaging of surfaces. In essence, it will allow us to determine and image the chemical composition of the outermost layers of a material. Initially, the instrumentation will support research in the areas of biomaterials, surface science, nanoscience, catalysis, and fuel cells. The instrument will also have broad impact upon the research and educational infrastructure at U of M. The new XPS instrument will be used in the undergraduate and graduate curriculum, as well as in summer research projects for minority high school students and young women.

该项目将导致购置一台X射线光电子能谱仪，这是商业仪器的一个重大进步。XPS已成为表征各种材料（包括聚合物、催化剂、金属和半导体）的化学组成、氧化和键合状态的关键技术。XPS仪器将提供真实的时间化学状态和元素成像能力，使用全范围的通过能量和来自真实的时间或扫描图像的多点分析，而不需要样品平移。该仪器还具有在大视场内获得数据的能力，同时保持光电子和俄歇峰位置。该仪器的初步研究重点将包括以下基础研究：生物医学应用的设计表面;神经假体的先进微探针;细胞培养用聚合物基底的化学机械纳米图案化;组织工程应用的表面改性纳米纤维支架;表面改性微加工化学分析装置; DNA分子在化学定制表面的受控锚定;同轴半导体纳米线;智能表面组装的分子开关;定向自组装纳米结构的聚焦离子束图案化;燃料处理器的质子交换膜燃料电池;贫氮氧化物陷阱的汽车排放控制;半导体合金表面;表面和界面的电子设备;和GaInNAs的高效太阳能电池。该工具也将对密歇根大学的研究和教育基础设施产生广泛的影响。参与该项目的大多数教师都有本科生研究机会计划（UROP）和本科生研究经验（REU）学生在他们的研究小组积极从事材料的表征。该仪器将用于少数民族高中生和年轻妇女的暑期研究项目。例如，参加美国航天局暑期高中学徒方案的一些代表性不足的群体的学生在密歇根大学电子微束分析实验室从事仪器项目，该实验室将是新的XPS仪器的所在地。一旦安装了拟议的仪器，它将被纳入本计划。该项目将导致购置一台具有先进能力的X射线光电子能谱仪。XPS已成为各种材料（包括聚合物、催化剂、金属和半导体）表面表征的关键技术。XPS仪器将实现表面的真实的化学状态和元素成像。从本质上讲，它将使我们能够确定和成像材料最外层的化学成分。最初，仪器将支持生物材料，表面科学，纳米科学，催化和燃料电池领域的研究。该工具也将对密歇根大学的研究和教育基础设施产生广泛的影响。新的XPS仪器将用于本科生和研究生课程，以及少数民族高中生和年轻妇女的暑期研究项目。