Atom probe (Upgrade)

Atom 示例（升级）

• 批准号: 458902866
• 金额: --
• 依托单位: Rheinisch-Westfälische Technische Hochschule Aachen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/458902866?language=en
• 关键词: Atom; probe; Upgrade

In the last 4 years, we have employed an atom probe to characterize advanced functional materials. These investigations have produced a number of noteworthy findings, including compelling evidence for a novel bonding mechanism in solids. Besides, a novel map has been developed which provides novel design rules for advanced functional materials. To fulfil the full potential of these discoveries, an upgrade of the existing is required. The main reasons for such upgrade are better detection capabilities with an increased detection efficiency of ~ 80% and enhanced data uniformity. Moreover, the laser alignment protocols are improved to enable increased measurement yields for complex materials. These novel capabilities will help us to better understand the unconventional bond-breaking behaviour observed for a distinct class of chalcogenides used as thermoelectrics, phase change materials, and topological insulators.

在过去的4年里，我们使用了原子探针来表征先进的功能材料。这些研究已经产生了许多值得注意的发现，包括令人信服的证据表明固体中存在一种新的成键机制。此外，还开发了一种新的MAP，为先进功能材料提供了新的设计规则。为了充分发挥这些发现的潜力，需要对现有的进行升级。这种升级的主要原因是更好的检测能力，检测效率提高了~80%，数据一致性得到了增强。此外，改进了激光对准方案，以提高复杂材料的测量产量。这些新的能力将帮助我们更好地理解观察到的一类独特的硫系化合物的非传统断键行为，这些硫化物用作热电材料、相变材料和拓扑绝缘体。