MRI: Acquisition of System for the Integration of Raman Scattering, Luminescence and Scanning Electron Microscopies

MRI：获取拉曼散射、发光和扫描电子显微镜集成系统

• 批准号: 0722845
• 负责人: Jonathan Spanier
• 金额: $ 49.81万
• 依托单位: Drexel University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0722845&HistoricalAwards=false
• 关键词: MRI; Acquisition; System; Integration; Raman

Technical AbstractThis multi-probe instrumentation will integrate micro-Raman scattering and other visible-wavelength spectroscopic probes with scanning secondary electron and electron backscattering, and energy-dispersive analytic mapping capabilities within a single experimental platform. Graduate and undergraduate, postdoctoral, and faculty researchers will use this capability to collect multi-channel maps of Raman scattering, cathodoluminescence, and photoluminescence spectroscopy, and electron microscopy and analysis with spatial correlation, and in high-vacuum, variable-pressure or environmental mode. Enhanced by a heating and cooling stage, the system will be used to provide spatially correlated images of local structure and phenomena, properties and fields. These include chemistry, structural phase, composition, strain, electronic carrier concentration, and carrier diffusion lengths in surface and near-surface nanostructures, thin-film and bulk materials and devices. By linking multiple quantitative mapping capabilities with multiple stimuli, the instrument will impact a diverse range of research activities, including those involving biomaterials and biosensors, nano-scale electronic, photonic and plasmonic materials and devices, materials design, and materials for applications in renewable energy technologies. The system will be used as a demonstration and teaching platform in undergraduate and graduate lecture and laboratory courses and in seminars on correlated microscopic and spectroscopic data and analysis. The tool will also be used in educational outreach activities, including programs that engage undergraduates from other institutions, and secondary-school mathematics and science teachers in summer-long research experiences.Non-technical AbstractThis scientific imaging and spectroscopic instrumentation will combine different materials characterization and device probing methods to provide researchers with multi-channel scanning optical, electrical and electron-beam based imaging and analysis capabilities within a single tool. With this system, researchers will simultaneously probe, spatially resolve and correlate several attributes of materials, devices and biological systems on the scale of a hundred times smaller than a human hair, and in different gas environments and at different temperatures. Included among these are micro-structure and topology, chemistry, chemical bonding, mechanical stress and stiffness, and the behavior of electrons and the color of light emitted, reflected or scattered. This tool will allow researchers to design, develop and evaluate the performance of new materials and devices for applications ranging from environmental monitoring to medical diagnostics and drug delivery, from eco-friendly energy production and storage to high-performance materials for vehicles, ships and aircraft. This equipment and results obtained using it will also be integral parts of undergraduate and graduate curricula in lectures, laboratory modules, and demonstrations in which students learn to apply multi-channel spectroscopic mapping methods to design and analysis. The instrument will also be used in educational outreach activities, including programs that engage undergraduates from other institutions, and secondary-school mathematics and science teachers in summer-long research experiences. Finally, this capability will facilitate new interactions between industrial collaborators and Drexel faculty and their student researchers through industry co-op positions and senior design projects. These interactions among students, faculty and industrial collaborators will provide additional context for their education and research training, further strengthening Drexel's long tradition of excellence in providing co-operative educational experience.

技术摘要这种多探头仪器将集成显微拉曼散射和其他可见波长光谱探头扫描二次电子和电子背散射，能量色散分析映射能力在一个单一的实验平台。 研究生和本科生，博士后和教师的研究人员将利用这种能力来收集拉曼散射，阴极发光，光致发光光谱，电子显微镜和空间相关分析的多通道地图，并在高真空，可变压力或环境模式。 通过加热和冷却阶段的增强，该系统将用于提供局部结构和现象、性质和场的空间相关图像。 这些包括化学，结构相，成分，应变，电子载流子浓度，以及表面和近表面纳米结构，薄膜和散装材料和设备中的载流子扩散长度。通过将多个定量映射功能与多个刺激相联系，该仪器将影响各种研究活动，包括涉及生物材料和生物传感器，纳米级电子，光子和等离子体材料和设备，材料设计以及可再生能源技术应用的材料。该系统将被用作本科生和研究生讲座和实验室课程以及相关显微镜和光谱数据和分析研讨会的演示和教学平台。该工具还将用于教育推广活动，包括吸引来自其他机构的本科生以及中学数学和科学教师参加夏季研究经验的计划。非技术摘要这种科学成像和光谱仪器将联合收割机结合不同的材料表征和设备探测方法，为研究人员提供多通道扫描光学，在一个单一的工具中的电子和电子束成像和分析能力。 有了这个系统，研究人员将在不同的气体环境和不同的温度下，在比人类头发小一百倍的尺度上同时探测、空间解析和关联材料、设备和生物系统的几个属性。 其中包括微结构和拓扑结构，化学，化学键合，机械应力和刚度，以及电子的行为和发射，反射或散射的光的颜色。 该工具将使研究人员能够设计，开发和评估新材料和设备的性能，从环境监测到医疗诊断和药物输送，从环保能源生产和储存到车辆，船舶和飞机的高性能材料。这种设备和使用它获得的结果也将是本科和研究生课程的组成部分，在讲座，实验室模块和演示中，学生学习应用多通道光谱映射方法进行设计和分析。 该仪器还将用于教育推广活动，包括吸引其他机构的本科生以及中学数学和科学教师参加夏季研究经验的计划。最后，这种能力将通过行业合作职位和高级设计项目促进行业合作者与德雷克塞尔学院教师及其学生研究人员之间的新互动。 学生，教师和工业合作者之间的这些互动将为他们的教育和研究培训提供额外的背景，进一步加强德雷克塞尔在提供合作教育经验方面的悠久传统。