MRI: Acquisition of an Ultrahigh Vacuum Atomic Force Microscopy Apparatus

MRI：获得超高真空原子力显微镜设备

基本信息

批准号：
0521328
负责人：
Wilfred Tysoe
金额：
$ 29.48万
依托单位：
University of Wisconsin-Milwaukee
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2005
资助国家：
美国
起止时间：
2005-08-01 至 2008-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0521328&HistoricalAwards=false
关键词：
MRI Acquisition Ultrahigh Vacuum Atomic

项目摘要

With support from the Major Research Instrumentation (MRI) Program, Wilfred Tysoe and Dennis W. Bennett in the Chemistry Department at the University of Wisconsin in Milwaukee will acquire an ultrahigh vacuum atomic force microscope (AFM). The instrument will be used primarily for two projects: a) the measurement of frictional properties of thin films that will allow nano-tribological measurements to be related to the properties of realistic contact geometries; b) investigations on the electrical properties of linked oligomers of aryl isocyanides to determine their potential as molecular wires. Other projects include studies on gate insulators for MOS devices and single-molecule fluorescence studies. Chemistry is a scientific discipline that studies structure and processes at the molecular scale. In the past, chemists learned to examine and elucidate molecular events by performing collective spectroscopy, that is, measuring average properties from solution or solid-state experiments. Modern techniques, including AFM, allow measurements on a much smaller scale. AFM allows the direct observation and understanding of molecular events occurring in chemical and biological processes, enables the correlation of microscopic structures to macroscopic properties, and permits the design of materials with nanoscopic features. These studies will have an impact in a number of areas, including surface and materials science.

在主要研究工具（MRI）计划的支持下，威斯康星大学密尔沃基大学化学系的Wilfred Tysoe和Dennis W. Bennett将获得超高真空原子力显微镜（AFM）。该仪器将主要用于两个项目：a）薄膜的摩擦特性的测量，这将允许纳米 - 衬底测量与逼真的接触几何形状的特性相关； b）研究芳基异氰化物连接的寡聚物的电性能，以确定其作为分子电线的潜力。其他项目包括有关用于MOS设备的栅极绝缘体和单分子荧光研究的研究。化学是一门科学学科，研究以分子量表进行结构和过程。过去，化学家学会了通过进行集体光谱法检查和阐明分子事件，即测量溶液或固态实验的平均特性。包括AFM在内的现代技术允许以较小的规模进行测量。 AFM允许直接观察和理解化学和生物过程中发生的分子事件，使微观结构与宏观特性相关，并允许设计具有纳米镜面特征的材料。这些研究将在许多领域产生影响，包括表面和材料科学。