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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=645868
• 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.

该提案描述了一项雄心勃勃的研究计划，涉及了解纳米级材料的特性、化学键合、原子结构和电子结构之间的关系。计划中的研究计划旨在了解掺杂剂原子对复杂材料性能的作用及其对原子水平的电子结构的影响、界面的详细原子结构、自然引起的局部应变引起的结构和性能的变化界面及其对材料相稳定性的作用。这项工作将通过对用于成像、传感器和探测器的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论证。该计划的第二个组成部分旨在探索新的混合材料结构，利用材料中电子气共振的耦合，从而扩大这一仍然基础领域的应用，并发现自然界中不存在的人造材料。 ***该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 开发的世界一流设施，其中包括两台世界上最先进的透射电子显微镜，可进行亚埃成像和光谱学。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粘合（通过光谱）和材料结构（通过成像和建模）的新信息。使用与显微镜耦合的独特原位激光，对显微镜内的材料进行曝光，从而可以研究光子与材料电子的相互作用，并使用显微镜的电子束探测基本现象。 ***这项研究将使得开发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、有毒分子和爆炸物探测器以及光和电子相结合的数据传输的新材料成为可能。引领新的计算机技术并最终点燃加拿大的新产业。 ******申请人（一级 CRC，于 2016 年更新了这一地位）的质量和影响力体现在持续的国际认可上，包括在国际会议上多次受邀演讲、关键参考文献中的多个书籍章节（百科全书、书籍） 、评论）以及他的学生获得的奖项。几位过去的 HQP 已调任学术界、政府研究实验室和工业界的职位。在 5 年内，该计划将支持至少 6 名博士生和 2 名博士后研究员，并大量使用先进仪器，这些仪器是加拿大最好的，但维护服务合同非常昂贵，目前与世界上最好的仪器具有竞争力。