X-ray photoelectron spectroscopy system

X射线光电子能谱系统

• 批准号: 424956935
• 金额: --
• 依托单位: Georg-August-Universität Göttingen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/424956935?language=en
• 关键词: ray; photoelectron; spectroscopy; system

X-ray photoelectron spectroscopy (XPS) is a pivotal analytical method for the characterization of, e.g. the chemical composition or redox states of surfaces and molecular compounds. The requested system replaces an older machine, the breakdown of which could not be compensated by other resources in Göttingen. It will be utilized within numerous scientific projects for the characterization of heterogeneous und homogeneous catalysts and metal, metal chalcogenide and polymer films and heterostructures. The XPS system is necessary to strengthen several running collaborative research structures and individual projects and planned initiatives.Chemical characterization of the relevant samples requires a monochromatic X-ray source (Al) with high energy resolution (<1eV) and simultaneously high sensitivity of the detector. A second source is necessary for the examination of Al-containing samples. Depth profiling of soft materials (polymers, metal chalcogenides) shall be enabled by argon cluster sputtering. An electron source is required for the identification of Auger peaks. The XPS system will be run in multi-user mode to enable broad use by several groups and centralized maintenace. It is therefore planned to accommodate it in the joined campus-lab CLUE in the Department of Physics and offer access to a large group of users particularly from chemistry and physics.

X射线光电子能谱（XPS）是表征表面和分子化合物的化学组成或氧化还原状态的关键分析方法。所要求的系统取代了一台旧机器，这台机器的故障无法由哥廷根的其他资源补偿。它将被用于许多科学项目中，用于表征多相和均相催化剂以及金属、金属硫属化物和聚合物薄膜和异质结构。XPS系统对于加强几个正在运行的合作研究结构和个别项目以及计划中的举措是必要的，相关样品的化学表征需要具有高能量分辨率（<1eV）的单色X射线源（Al），同时检测器具有高灵敏度。第二个来源是必要的检查含铝样品。软材料（聚合物、金属硫属化物）的深度剖析应通过氩簇溅射实现。俄歇峰的识别需要电子源。XPS系统将以多用户模式运行，以便多个群体广泛使用和集中维护。因此，计划将其容纳在物理系的校园实验室CLUE中，并为大量用户提供访问，特别是来自化学和物理的用户。