Laser-PEEM/LEEM Facility for Multidisciplinary Nanoscience Imaging

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。激光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，例如，纳米颗粒上和周围的催化化学，铁电畴壁操纵，2D材料中的边缘状态结构修改，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，通过推动光伏效率等领域的科学进步，解决与气候变化、能源存储、能源收集、数据和清洁增长相关的紧迫而重要的社会挑战，稳定和安全的数据存储设备技术和电池性能。

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.