MRI: Acquisition of a Field Emission Scanning Electron Microscope

MRI：场发射扫描电子显微镜的获取

• 批准号: 1039828
• 负责人: Piotr Piotrowiak
• 金额: $ 31.97万
• 依托单位: Rutgers University Newark
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1039828&HistoricalAwards=false
• 关键词: MRI; Acquisition; Field; Emission; Scanning

With this award from the Major Research Instrumentation (MRI) program, Piotr Piotrowiak and colleagues Elena Galoppini, Frieder Jaekle, Huixin He and Evert Elzinga from Rutgers University Newark will acquire a field emission scanning electron microscope (SEM) with energy dispersed X-ray spectrometer (EDS). The proposal is aimed at enhancing research, research training and education at all levels. The instrument will support research in a number of areas including studies of exciton and charge dynamics in semiconductor nanostructures and hybrid molecular/nanoparticle systems, investigation of geochemical processes at mineral-water interfaces that control the speciation of heavy metals, studies directed at a molecular-level understanding of interfacial electron transfer through the synthesis of 'sensitizer' dyes, the development of new synthetic chemistry of organoboron compounds and functional polymers with sub-micron structure, and the development of hybrid sensors based on nanotube-polymer interactions. A scanning electron microscope (SEM) is one of the basic tools available for the characterization of materials. A beam of electrons scans the surface of a sample resulting in a microimage of the sample composition. The electron microscope can provide higher resolution and magnification than a microscope using light to probe the material. Characteristic X-rays are produced from interaction with atoms in the sample that when dispersed provide information on the elemental composition (EDS). This instrumentation will provide microscopy training and research opportunities to graduate and undergraduate students across many fields including chemistry, earth sciences and environmental science fields preparing them for the demands of the 21st century workforce in science and technology.

有了这项重大研究仪器（MRI）计划的奖项，罗格斯大学纽瓦克的Piotr Piotrowiak和同事Elena Galoppini，Frieder Jaekle，Huixin He和Evert Elzinga将获得一台带有能量分散X射线光谱仪（EDS）的场发射扫描电子显微镜（SEM）。 该提案旨在加强各级的研究、研究培训和教育。该仪器将支持多个领域的研究，包括半导体纳米结构和混合分子/纳米颗粒系统中激子和电荷动力学的研究，控制重金属形态的矿物-水界面的地球化学过程的调查，通过合成“敏化剂”染料，开发具有亚微米结构的有机硼化合物和功能聚合物的新合成化学，以及开发基于纳米管-聚合物相互作用的混合传感器。扫描电子显微镜（SEM）是可用于材料表征的基本工具之一。电子束扫描样品的表面，产生样品组合物的显微图像。电子显微镜可以提供比使用光来探测材料的显微镜更高的分辨率和放大率。特征X射线由与样品中原子的相互作用产生，当分散时提供关于元素组成（EDS）的信息。 这种仪器将提供显微镜培训和研究机会，研究生和本科生在许多领域，包括化学，地球科学和环境科学领域准备他们的需求，21世纪世纪劳动力在科学和技术。