Structure and Properties Relationships in Nanoscale Materials

纳米材料的结构和性能关系

• 批准号: RGPIN-2017-06570
• 负责人: Botton, Gianluigi
• 金额: $ 5.83万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=711586
• 关键词: Structure; Properties; Relationships; Nanoscale; Materials

This proposal describes an ambitious research program related to the understanding of the relationship between properties, chemical bonding, atomic structure and electronic structure in nanoscale materials. The planned research program aims to understand the role of dopant atoms on complex materials properties and their effect on the electronic structure down to the atomic level, the detailed atomic structure of interfaces, the changes in structure and properties induced by local strain due to the nature of interfaces and their role on the phase stability of materials. This work will be demonstrated through detailed investigations of complex oxides thin films based on high-temperature superconductors and semiconducting materials used for imaging, sensors and detectors. A second component of the program aims to explore new hybrid material architectures exploiting the coupling of resonances of the electron gas in materials, leading to broader application of this still-fundamental field and to the discovery of artificial materials that do not exist in nature. The research will make extensive use of a suite of instruments at the Canadian Centre for Electron Microscopy, a world-class facility developed by the PI, that includes two of the most advanced transmission electron microscopes in the world allowing sub-Angstrom imaging and spectroscopy. These instruments will provide new information on bonding (via spectroscopy) and structure of materials (via imaging and modeling) at an unprecedented spatial resolution and spectroscopic sensitivity. Using a unique in-situ laser coupled to the microscope, exposure of materials inside the microscope will be carried out allowing the investigation of the interaction of photons with electrons of materials and to probe fundamental phenomena using the electron beam of the microscope. This research will make it possible to develop new materials that can be used for biomedical imaging, for quantum computers, for biomolecular sensors and diagnostic tools, for detectors of toxic molecules and explosives, and for data transfer combining light and electrons that will lead to new computer technologies and ultimately ignite new industries in Canada. The quality and impact of the applicant (a Tier I CRC who had this status renewed in 2016) is demonstrated by sustained international recognition with numerous invited talks at international conferences, several book chapters in key references (encyclopedias, books, reviews) and awards won by his students. Several past HQP have moved on to positions in Academia, Government Research labs and Industry. Over the 5 years, this program will support a minimum of 6 PhD students and 2 Postdoctoral fellows and the significant use of advanced instrumentation, the very best in Canada but very expensive to maintain with service contracts, currently competitive with the very best in the world.

这项建议描述了一项雄心勃勃的研究计划，该计划与了解纳米材料的性质、化学键、原子结构和电子结构之间的关系有关。计划中的研究计划旨在了解掺杂原子对复杂材料性能的作用及其对电子结构的影响，低至原子水平的电子结构，界面的详细原子结构，界面性质引起的局部应变引起的结构和性能变化，以及它们对材料相稳定性的作用。这项工作将通过对基于高温超导体和半导体材料的复合氧化物薄膜的详细研究来演示，这些材料用于成像、传感器和探测器。该计划的第二个组成部分旨在探索新的混合材料体系结构，利用材料中电子气的共振耦合，导致这一仍然基础的领域的更广泛应用，并发现自然界中不存在的人造材料。 这项研究将广泛使用加拿大电子显微镜中心的一套仪器，这是由PI开发的世界级设施，其中包括两台世界上最先进的透射式电子显微镜，可以进行亚埃成像和光谱分析。这些仪器将以前所未有的空间分辨率和光谱灵敏度提供有关材料的成键(通过光谱学)和结构(通过成像和建模)的新信息。使用与显微镜耦合的独特的原位激光，将进行显微镜内材料的曝光，从而能够研究材料的光子与电子的相互作用，并使用显微镜的电子束探测基本现象。 这项研究将使开发新材料成为可能，这些材料可用于生物医学成像、量子计算机、生物分子传感器和诊断工具、有毒分子和爆炸物的探测器，以及结合光和电子的数据传输，这将导致新的计算机技术，并最终在加拿大点燃新的产业。 申请者(2016年续签了这一身份的一级CRC)的质量和影响体现在持续的国际认可上，在国际会议上进行了多次受邀演讲，关键参考文献(百科全书、书籍、评论)中的几个章节以及他的学生赢得了奖项。过去的几位HQP已经在学术界、政府研究实验室和工业领域担任过职务。在5年内，该项目将支持至少6名博士生和2名博士后研究员，并大量使用先进的仪器设备，这些仪器在加拿大是最好的，但通过服务合同维护起来非常昂贵，目前与世界上最好的仪器竞争。