Functional, Atomically-Defined Nanowires and Nanoribbons of Silicon

功能性、原子定义的纳米线和硅纳米带

• 批准号: 1404922
• 负责人: Colin Nuckolls
• 金额: $ 81.71万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1404922&HistoricalAwards=false
• 关键词: Functional; Atomically; Defined; Nanowires; Nanoribbons

Colin Nuckolls, James Leighton and Latha Venkataraman, all of Columbia University, are funded by the Macromolecular, Supramolecular and Nanochemistry program in the Division of Chemistry for research to develop methods to design, create, and study single molecule chains and ribbons of silicon atoms. Pure silicon is, of course, widely used in the electronics and information technology industry and is highly valued for its properties as a semiconductor. Its semiconductor nature is the result of molecular and electronic properties that arise at the atomic level. Changes in silicon's electrical properties have been noted as the size of silicon-based devices, such as computer chips and information storage media, become smaller. The investigators are using precise molecular construction techniques to create highly electrically conductive forms of silicon with specific shapes and properties that have never before been studied. In particular, they are looking at tiny ribbons and wires of silicon that hold promise for the development of future electronic devices. This collaborative project is making an explicit connection between the properties of bulk silicon, the bedrock of information technology, and molecular forms of silicon, and is, thus, having a broad impact on the semiconductor industry. This project is having a further broad impact through a coordinated effort that spans K-8 outreach, curriculum development, and research training for undergraduate, graduate, and post-doctoral scientists.The investigators are creating and studying atomically precise nanowires and nanoribbons of silicon that have been functionalized so they can be studied in unimolecular electrical devices. The design and synthesis of rigid, strained, and functional nanowires and nanoribbons of silicon is being used to test the impact of strain on single molecule conductance. Nanoscopic probes developed in this project are allowing the assembly and integration of these new nanomaterials into electrical devices. The combination of expertise among team members working in concert is allowing advanced molecules to be designed, synthesized, and studied in a feedback loop. This approach to research fosters a holistic understanding of these unique one-dimensional chains of silicon atoms and enhances the probability that new properties and devices will be discovered.

哥伦比亚大学的Colin Nuckolls，James Leighton和Latha Venkataraman由大分子，超分子和纳米化学计划资助，用于开发设计，创建和研究单分子链和成硅硅Atoms的研究方法，以开发设计，创建和研究的方法。当然，纯硅在电子和信息技术行业中广泛使用，并且由于其作为半导体的特性而受到高度重视。它的半导体性质是原子水平出现的分子和电子特性的结果。硅电气性能的变化已被注意到基于计算机芯片和信息存储媒体等基于硅的设备的大小变小。研究人员正在使用精确的分子构造技术来创建具有前所未有研究的特定形状和特性的高度导电形式的硅。特别是，他们正在寻找对未来电子设备开发的有望有希望的微小丝带和电线。这个协作项目是在散装硅的性质，信息技术基岩和硅的分子形式之间建立明确的联系，因此对半导体行业产生了广泛的影响。通过协调的努力，该项目对本科，研究生和博士后科学家进行了K-8外展，课程开发以及研究培训，从而产生了更大的影响。研究人员正在创建和研究原子质的纳米线和纳米骨的原子硅和纳米骨，从而可以在Unimolecular Electrical中进行研究，从而可以研究它们。硅的刚性，紧张和功能性纳米线的设计和合成被用来测试菌株对单分子电导的影响。该项目中开发的纳米镜探针允许将这些新纳米材料的组装和整合到电器中。团队成员之间专业知识的结合允许在反馈循环中设计，合成和研究高级分子。这种研究方法促进了对这些独特的一维原子链的整体理解，并提高了发现新属性和设备的可能性。