Acquisition of Surface Electron Spectroscopy Instrumentation

9503304迪金森这个奖项是为了表彰为华盛顿州立大学在先进材料研究领域工作的许多教职员工和学生而购买的表面电子能谱仪器。所要求的具体仪器是电子能谱仪(ES)，结合了俄歇电子能谱仪(AES)、X射线光电子能谱仪(XPS)和紫外线光电子能谱仪(UPS)，包括必要的真空系统、电子学和数据采集/数据呈现系统。这一设施将为华盛顿州立大学提供目前无法提供的新能力。将从这一仪器中受益的研究包括薄膜合成和加工、表面改性、激光表面相互作用、摩擦学和断裂以及原子水平上的材料表征。AES/XPS可以对表面成分进行定性和半定量分析，并与UPS相结合，提供有关电子和化学结构的关键信息。华盛顿州立大学的一项关键要求是将该设施配置为既可供实验直接使用，也可用于常规表面分析。为了实现这一双重目的，我们将购买一台完整的光谱仪，带有两个负载锁定进样口和温控进样台。由于许多用户需要在受控环境中进行独特的真空实验和/或样品制备和处理，我们将建造一个灵活的实验/样品制备处理室，以连接到主分析室。第二个密封室的使用将安排在较长的时间段内(约3-5周)，以允许不同的用户最大限度地清洁、配置和使用该系统。这种组合允许在超高电压条件下进行实验、生长研究和/或现场样品制备以及伴随的表面分析。同时，样品可以从外部引入分析室进行常规分析，而不会发生冲突。获得这种能力对于大学内多个系的研究活动至关重要，包括物理、化学、机械和材料工程、地质学、化学工程和电气工程。这项活动是在两个跨学院组织下组织的。最近成立了材料研究中心和材料科学计划，以解决材料科学的跨学科性质。材料研究中心由来自6个不同部门的20名高级参与者组成，成立的目的是鼓励材料科学和工程以及应用凝聚态科学领域的合作、跨学科项目。材料科学项目是华盛顿州立大学材料科学项目的研究生教育分支；该项目于1990年秋季启动，是华盛顿州立大学最近开设的博士项目。在下文所述的项目中，共有21名研究生和博士后，他们的研究将直接受益于获得这一专家系统。还有另外12名学生参与了本提案中描述的其他项目，他们的研究将从这些表面分析技术中受益匪浅。预计一旦获得并演示这种仪器，将吸引其他研究生和教职员工使用它。AES/XPS系统还将为研究生和本科生提供实质性的教学工具，影响至少10名额外的学生。

9503304 Dickinson This award is for the acquisition of surface electron spectroscopy instrumentation to serve a number of faculty and students at Washington State University who are working in the area of advanced materials research. The specific instrumentation requested is an electron spectrometer (ES), combining an Auger Electron Spectrometer (AES), X-Ray Photoelectron Spectrometer (XPS), and Ultraviolet Photoelectron Spectrometer (UPS), including the necessary vacuum system, electronics, and data acquisition/data presentation system. This facility will provide new capabilities at Washington State University not presently available. The research that will benefit from this instrumentation includes efforts in thin film synthesis and processing, surface modification, laser surface interactions, tribology and fracture, and characterization of materials on an atomic level. AES/XPS allows both qualitative and semiquantitative analysis of surface composition and, combined with UPS, provides critical information about electronic and chemical structure. A key requirement at WSU is that the facility be configured for both direct use by experiments and for routine surface analysis. To achieve this dual purpose, we will purchase a complete spectrometer with two load lock sample introduction ports and temperature controlled sample stage. Because many of the users require unique vacuum experiments and/or sample preparation and treatment in a controlled environment, we will build a flexible experimental/sample preparation treatment chamber to be attached to the main analysis chamber. The use of this second chamber will be scheduled in large time blocks (about 3-5 weeks) to allow different users to clean, configure, and use this system to their best advantage. This combination allows the capability of performing experiments, growth studies, and/or in situ sample preparation with accompanying surface analysis under UHV conditions. Simultaneously, without conflict, samples can be introduced into the analysis chamber from the outside for routine analysis. Acquisition of this capability is essential for research activities in a number of departments within the University, including Physics, Chemistry, Mechanical and Materials Engineering, Geology, Chemical Engineering, and Electrical Engineering. This activity is organized under two crosscollege organizations. The Center for Materials Research and the Materials Science Program have been recently established to address the interdisciplinary nature of Materials Science. The Center for Materials Research consists of 20 senior participants from 6 different departments and was formed with the purpose of encouraging collaborative, crossdisciplinary projects in the area of materials science and engineering and applied condensed matter science. The Materials Science Program is the graduate educational arm of the materials science thrust at Washington State University; the Program was initiated in the Fall of 1990 and is the most recently created Ph.D. program in the University. In the projects described below there are a total of 21 graduate and postdoctoral students whose research will directly benefit from the acquisition of this ES system. There are an additional 12 students involved in other projects described in this proposal whose research would significantly benefit from these surface analysis techniques. It is anticipated that other graduate students and faculty will be attracted to use this instrumentation once it is acquired and demonstrated. The AES/XPS system would also provide substantial benefit as an instructional instrument for both graduate and undergraduate students impacting at least 10 additional students.