"Bonding, Structure and Properties of Nanoscale Materials"

该提案旨在支持一项雄心勃勃的研究计划，该计划涉及研究纳米材料的性质、化学键/电子结构和结构之间的关系。计划的研究项目旨在研究界面的原子构型，由于终止，应变引起的价态变化，以及存在缺陷对材料性能和稳定性的影响。这将包括1)高温超导体复合氧化物薄膜和2)半导体薄膜的研究。该计划的第二个组成部分是探索功能氧化物和纳米颗粒的结构如何影响和响应光的刺激。这项研究将广泛使用加拿大电子显微镜中心的一套仪器，这是一个由PI开发的世界级设施，其中包括两台世界上最先进的透射电子显微镜，这将使实现亚埃分辨率和同步质量光谱成为可能。这些仪器将以前所未有的空间分辨率和光谱灵敏度提供键合（通过光谱学）和材料结构（通过成像和建模）的新信息，包括在带有单色器的电子显微镜中第一台高功率多波长激光器，因此可以进行全新的研究并在这个新领域做出新的发现。

This proposal aims to support an ambitious research program related to the study of the relationship between properties, chemical bonding/electronic structure and structure in nanoscale materials. The planned research program aims to study the role of atomic configuration of interfaces, due to the termination, valence changes induced by strain, and the presence of defects on the properties and stability of materials. This will cover the study of 1) complex oxides thin films with high-temperature superconductors and 2) semiconductor films. A second component of the program is to explore 3) how the structures of functional oxides and nanoparticles affect and respond to stimulation with light. The research will make extensive use of a suite of instruments in 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 that will make it possible to achieve sub-Angstrom resolution and synchrotron-quality spectra. 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, including the first high-power multiple-wavelength laser within an electron microscope with a monochromator, so that entirely new research can be undertaken and new discoveries in this new field can be made.