MRI: Acquisition of a Renishaw Structural and Chemical Analyzer and a Field-Emission Scanning Electron Microscope

技术摘要：我们将获得最先进的Reinshaw结构和化学分析仪（SCA）以及日立S4800场发射扫描电子显微镜（FESEM）。这种组合的仪器将使纳米科学和纳米技术取得新的进展。SCA分析仪与FESEM相结合的主要优势包括以高空间分辨率从样品的同一区域获得形态学，物理，化学和电子结构的关键信息的独特能力。SCA结合了基于光学显微镜的拉曼光谱、光致发光（PL）和阴极发光（CL）光谱的优势，以及它们对光元素的高灵敏度、FESEM的高分辨率成像（至1.0nm）和EDS的元素分析能力。该仪器将用于推进以下研究活动：(1)用于平板显示器和微波应用的碳纳米管的生长；(2)透明导电矩阵中量子点形成的研究；(3)纳瓦霍保留地土壤中含铀矿物的鉴定；(4)新型光子和分子电子材料的表征；(5) U-Th-Pb年代学分析矿物特征。该系统将通过现有的电子显微镜中心服务于跨学科研究和教育，并将加强大学研究人员和工业界之间的合作。我们主要参与少数民族项目，并通过REU， RET, GK-12， IGERT， MPS公共科学教育项目，以及校园内的大学科学中心和亚利桑那州立博物馆，为与所有年龄段学生的互动做出了重大贡献。我们将利用校园访问和互联网将材料研究的兴奋带给少数族裔服务机构的教师和学生、美国原住民和科学博物馆。摘要扫描电子显微镜（SEM）是材料表征实验室的基本工具，使研究人员和工程师能够研究材料的微观结构和组成，并将其与材料的性能和加工技术联系起来。最近在光学光谱仪方面的创新使得将扫描电镜的分辨率和多功能性与传统光谱学技术相结合成为可能。SEM和光学光谱仪（雷尼绍）的结合能够以前所未有的规模和彻彻性分析纳米级结构的形态，物理，化学和电子特性。这种能力对于亚利桑那大学各种研究项目的推进至关重要。具体项目包括用于电子工业的碳纳米管的研究和制造，纳瓦霍保留地减轻地下水污染的重大倡议，用于纳米级电子和光子器件的材料制造，发光量子点的新用途，以及改进的放射性同位素定年技术。其中几个项目将大大加强大学与当地工业的联系。该仪器将成为现有电子显微镜中心的一部分，该中心为整个大学提供完整的培训，教育和外展计划。该设施在与所有年龄和教育水平的学生，包括美洲原住民在内的少数民族和当地K12科学教师合作方面有着出色的记录，并与大学科学中心和亚利桑那州立博物馆保持密切联系。该仪器将通过互联网连接到学校和科学博物馆，也可用于我们的许多校园功能和活动。

Technical AbstractWe will acquire a state-of-the-art Reinshaw structural and chemical analyzer (SCA) coupled with a Hitachi S4800 field-emission scanning electron microscope (FESEM). The combined instruments will enable new advances in nanoscience and nanotechnology. The major advantage of combining the SCA analyzer with the FESEM includes the unique ability to obtain critical information on morphological, physical, chemical and electronic structure, all from the same region of the sample at a high-spatial resolution. The SCA combines advantages of light microscopy-based Raman, photoluminescence (PL), and cathodoluminescence (CL) spectroscopy with their high sensitivity to light elements with the high resolution imaging (to 1.0nm) of the FESEM and elemental analysis capabilities of EDS. The instrument will be utilized in advancing the following research activities: (1) Growth of Carbon Nanotubes for Flat-Panel Displays and for Microwave Applications; (2) Studies of Quantum Dot Formation in a Transparent Conductive Matrix; (3) Identification of Uranium-Containing Minerals in Soils from the Navajo Reservation; (4) Characterization of New Photonic and Molecular Electronic Materials; and (5) Characterization of Minerals Analyzed for U-Th-Pb Geochronology. The system will serve interdisciplinary research and education through the existing Electron Microscopy Center, and will increase collaboration between University researchers and industry. We have major involvements in minority programs and have contributed significantly to interactions with students of all ages through the REU, RET, GK-12, IGERT, MPS Public Science Education program, and with the University Science Center and the AZ State Museum, located on campus. We will use campus visits and the Internet to bring the excitement of materials research to instructors and students of minority-serving institutions, to Native Americans, and to science museums. Lay AbstractThe Scanning Electron Microscope (SEM) is a basic tool in materials characterization laboratories, allowing researchers and engineers to study a material's microstructure and composition to relate it to the material's properties and processing techniques. Recent innovations in optical spectrometers have made it possible to combine the resolution and versatility of the SEM with conventional light spectroscopy techniques. The resulting combination of SEM and optical spectrometer (Renishaw) is capable of analyzing nanoscale structures for morphological, physical, chemical and electronic properties at a scale and thoroughness not possible before. This ability is critical to the advancement of a diverse range of research projects at the University of Arizona. Specific projects include the study and fabrication of carbon nanotubes for use in the electronics industry, a major initiative on the Navajo reservation to mitigate groundwater contamination, fabrication of materials used in nanoscale electronic and photonic devices, a novel use for luminescent quantum-dots, and improved radioisotope dating techniques. Several of these projects will greatly enhance the University's ties to local industry. The instrument will be part of the existing Electron Microscopy Center, which serves the entire University with a full training, education, and outreach program. The facility has an outstanding track record of working with students of all ages and levels of education, minorities including Native Americans, and local K12 science teachers, as well as a close association with the University Science Center and the Arizona State Museum. The instrument will be linked via the internet to schools and science museums, as well as being available for our many on-campus functions and activities.