CAREER: Electronic and Optical Properties of Nanostructures Built with Atomic Precision

职业：以原子精度构建的纳米结构的电子和光学特性

• 批准号: 0645451
• 负责人: Jay Gupta
• 金额: $ 50万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0645451&HistoricalAwards=false
• 关键词: CAREER; Electronic; Optical; Properties; Nanostructures

Non-Technical abstract:To realize the promise of nanostructured materials for applications in information technology, medicine and energy, an atomic-level understanding of nanostructure properties is needed. This Faculty Early Career program focuses on nanoscience research, education and outreach at Ohio State University. Scanning tunneling microscopy is used to study metal nanoclusters and molecular wires which are potentially future building blocks for nanoscale devices. These microscopes have unique capabilities suitable for studying nanostructure properties as their size, shape, and local environment are varied on the atomic scale. This research is integrated with educational and outreach activities at Ohio State which target underrepresented undergraduates, high school students and the public. Classroom lectures, research demonstrations and outreach presentations are delivered to remote locations using web-based Access Grid videoconferencing tools. These efforts will improve participation and training of students in science, technology, engineering and mathematics (STEM) related fields.Technical abstract:To realize the promise of nanostructured materials for applications in information technology, medicine and energy, an atomic-level understanding of nanostructure properties is needed. Scanning tunneling microscopy is used to study how quantum size effects, atomic structure and coupling to the local environment influence the electronic and optical properties of metal nanoclusters. These influences are systematically studied with atomic-resolution imaging, tunneling/optical spectroscopy and atom/molecule manipulation. Metal nanoclusters form atomically-precise contacts for studies of current flow through single molecules. This research is integrated with educational and outreach activities at Ohio State which target underrepresented undergraduates, high school students and the general public. Classroom lectures, research demonstrations and outreach presentations are delivered to remote locations using web-based Access Grid videoconferencing tools. These efforts will improve participation and training of students in science, technology, engineering and mathematics (STEM) related fields.

非技术摘要：为了实现纳米结构材料在信息技术、医学和能源领域的应用前景，需要对纳米结构特性有原子级的了解。该教师早期职业计划侧重于俄亥俄州立大学的纳米科学研究、教育和推广。扫描隧道显微镜用于研究金属纳米团簇和分子线，它们可能是未来纳米级器件的构建模块。这些显微镜具有适合研究纳米结构特性的独特功能，因为它们的尺寸、形状和局部环境在原子尺度上各不相同。这项研究与俄亥俄州立大学针对代表性不足的本科生、高中生和公众的教育和外展活动相结合。使用基于网络的 Access Grid 视频会议工具将课堂讲座、研究演示和外展演示传送到远程位置。这些努力将改善学生在科学、技术、工程和数学 (STEM) 相关领域的参与和培训。技术摘要：实现纳米结构材料在信息技术、医学和能源领域应用的前景，对纳米结构的原子级理解需要属性。扫描隧道显微镜用于研究量子尺寸效应、原子结构和与局部环境的耦合如何影响金属纳米团簇的电子和光学特性。通过原子分辨率成像、隧道/光学光谱和原子/分子操纵系统地研究了这些影响。金属纳米团簇形成原子级精确的接触，用于研究流经单分子的电流。这项研究与俄亥俄州立大学针对代表性不足的本科生、高中生和公众的教育和外展活动相结合。使用基于网络的 Access Grid 视频会议工具将课堂讲座、研究演示和外展演示传送到远程位置。这些努力将改善学生在科学、技术、工程和数学 (STEM) 相关领域的参与和培训。