Laser-PEEM/LEEM Facility for Multidisciplinary Nanoscience Imaging

用于多学科纳米科学成像的激光-PEEM/LEEM 设备

• 批准号: EP/V029258/1
• 负责人: Sarnjeet Dhesi
• 金额: $ 102.68万
• 依托单位: Diamond Light Source
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV029258%2F1
• 关键词: Laser; PEEM; LEEM; Facility; Multidisciplinary

Electron microscopy has a strong record of disruptive breakthroughs that propel innovation by exploring the fundamental properties of a wide range of naturally occurring and fabricated materials. A PhotoEmission Electron Microscope (PEEM) gives nanoscale insights into the chemical, magnetic and electronic properties of materials. A Low-Energy Electron Microscope (LEEM) provides detailed nanoscale structural insights through full-field imaging combined with spatially resolved Low-Energy Electron Diffraction (micro-LEED). We will combine PEEM/LEEM with a continuous wave (CW) laser (Laser-PEEM/LEEM) to provide a unique user facility with the highest possible spatial resolution and with probing depths ranging from less than a nanometre to tens of nanometres. The Laser-PEEM/LEEM instrument will provide unique opportunities to connect structure to function through detailed nanoscale imaging and real-time monitoring of, for example, catalytic chemistry on and around nanoparticles, ferroic domain wall manipulation, edge state structural modifications in 2D materials, battery electrode degradation and photovoltaic cell activity.The multidisciplinary Laser-PEEM/LEEM facility will provide the science and engineering research community with unique capabilities to address urgent and important societal challenges related to climate change, energy storage, energy harvesting, data and clean growth by enabling scientific advances in, for instance, photovoltaic efficiency, stable and secure data storage device technologies and battery performance.

电子显微镜在颠覆性突破方面有着良好的记录，这些突破通过探索各种自然发生和制造材料的基本特性来推动创新。光电发射电子显微镜（PEEM）提供了对材料的化学、磁性和电子特性的纳米级洞察。低能电子显微镜（LEEM）通过全场成像结合空间分辨低能电子衍射（micro-LEED）提供详细的纳米级结构见解。我们将联合收割机PEEM/LEEM与连续波（CW）激光器（Laser-PEEM/LEEM）相结合，为用户提供一个独特的设施，具有最高的空间分辨率，探测深度从不到一纳米到几十纳米。Laser-PEEM/LEEM仪器将提供独特的机会，通过详细的纳米级成像和实时监测，将结构与功能联系起来，例如纳米颗粒上及其周围的催化化学、铁磁畴壁操纵、2D材料中的边缘状态结构修饰，电池电极降解和光伏电池活性。多学科激光PEEM/LEEM设施将为科学和工程研究界提供独特的能力，以解决与气候变化，能源储存，能源收集，数据和清洁增长相关的紧迫和重要的社会挑战，例如，光伏效率，稳定和安全的数据存储设备技术和电池性能。