RUI: Acquisition of an X-ray Photoelectron Spectroscopy System for Materials Science Research and Undergraduate Education

RUI：采购用于材料科学研究和本科教育的 X 射线光电子能谱系统

• 批准号: 0114213
• 负责人: Douglas Dunham
• 金额: $ 20.36万
• 依托单位: University of Wisconsin-Eau Claire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0114213&HistoricalAwards=false
• 关键词: RUI; Acquisition; ray; Photoelectron; Spectroscopy

This award from the Major Research Instrumentation program and the Instrumentation for Materials Research Program to the University of Wisconsin-Eau Claire provides partial support for the acquisition of a x-ray photoelectron spectroscopy system for research and undergraduate education and training. The instrument will be used to investigate the physics and chemistry of semiconductors, thin films, and metallic alloys. Several different systems will be studied. These include: 1) the electronic, chemical, and structural properties of compound IV-IV semiconductors, including the passivation, oxidation, oxynitridation and metallization; 2) the chemistry of the molecular precursors typically used in gallium-nitride and indium-gallium-nitride film growth, as well as the chemistry of the molecular fragments from such precursors; 3) the growth mechanisms and structures of thin metal films on semiconductors; and 4) corrosion processes of metal alloys and thin films. Since undergraduate research is a critical component of the educational system at the University of Wisconsin-Eau Claire, students will perform research with the new instrument. It will be used in course work and will be used to educate and train students in materials research.This award from the Major Research Instrumentation program and the Instrumentation for Materials Research Program to the University of Wisconsin-Eau Claire provides partial support for the acquisition of an x-ray photoelectron spectroscopy (XPS) system for research and undergraduate education and training. Semiconductors, metals, and insulators are the materials that make microelectronic chips possible. Nearly all computer chips, for example, are fabricated from silicon. Similar materials and used in electro-optic devices, such as light-emitting diodes used in many consumer electronics and increasingly in the automotive industry and roadway signing, and diode lasers, which form the heart of laser printers and compact disc players. The successful fabrication of computer chip and electro-optic devices requires a detailed understanding of the physics and chemistry of the interface between two materials, as well as fundamental processes occurring on the surface of these materials. Surface properties and composition are therefore important to the fabrication of useful devices. X-ray photoelectron spectroscopy (XPS) is a technique that provides information about surface composition and is capable of providing information about the "chemical state" in which surface atoms exist. The instrument will be used to: 1) investigate semiconductor and metal surfaces, and how varying surface composition of either material influences the interface that forms between two dissimilar materials; 2) follow surface chemical reactions relevant to growing thin films of materials and how etching reactions proceed at semiconductor and metal surfaces; and 3) study how surface composition influences surface structure and morphology during film growth and etching. Undergraduate students, including students from physical sciences as well as life sciences, will be involved in all research projects and will operate and help to maintain the new instrument as part of their collaborative research projects with faculty research mentors.

威斯康星大学欧克莱尔分校获得的主要研究仪器项目和材料研究仪器项目的这一奖项，为研究和本科教育与培训提供了x射线光电子能谱系统的部分支持。该仪器将用于研究半导体、薄膜和金属合金的物理和化学。我们将研究几种不同的系统。这些包括：1)化合物IV-IV半导体的电子、化学和结构性能，包括钝化、氧化、氧化氮化和金属化；2)氮化镓和铟氮化镓薄膜生长中通常使用的分子前体的化学性质，以及来自这些前体的分子片段的化学性质；3)半导体金属薄膜的生长机理和结构；4)金属合金和薄膜的腐蚀过程。由于本科研究是威斯康星大学欧克莱尔分校教育系统的重要组成部分，学生将使用新仪器进行研究。它将用于课程作业，并将用于教育和培训学生的材料研究。威斯康星大学欧克莱尔分校的主要研究仪器项目和材料研究仪器项目授予的这一奖项为研究和本科教育与培训提供了x射线光电子能谱（XPS）系统的部分支持。半导体、金属和绝缘体是制造微电子芯片的材料。例如，几乎所有的计算机芯片都是用硅制造的。电光器件中使用的类似材料，例如用于许多消费电子产品的发光二极管，以及越来越多地用于汽车工业和道路标识，以及构成激光打印机和激光唱机核心的二极管激光器。计算机芯片和电光器件的成功制造需要详细了解两种材料之间界面的物理和化学，以及发生在这些材料表面的基本过程。因此，表面性质和组成对制造有用的器件很重要。x射线光电子能谱（XPS）是一种提供表面组成信息的技术，能够提供表面原子存在的“化学状态”信息。该仪器将用于：1)研究半导体和金属表面，以及任何一种材料的不同表面组成如何影响两种不同材料之间形成的界面；2)跟踪与材料薄膜生长相关的表面化学反应，以及半导体和金属表面的蚀刻反应如何进行；3)研究在薄膜生长和蚀刻过程中，表面成分对表面结构和形貌的影响。本科生，包括物理科学和生命科学专业的学生，将参与所有的研究项目，并将操作和帮助维护新仪器，作为他们与教师研究导师合作研究项目的一部分。