Atom Probe Tomograph

该申请的目的是通过实施新的能力极来大大加强弗赖堡大学的绿色能源研究。拟安装原子探针层析成像仪（APT）和聚焦离子束/扫描电子显微镜（FIB-SEM）系统。弗赖堡大学在获得德国研究基金会第三方资助方面在德国大学中排名第九，但APT还无法获得，这阻碍了许多科学领域的研究。以APT为主要仪器，将FIB-SEM和APT相结合，建立“相关显微镜”。相关显微镜的主要用途将是研究太阳能电池和电池等能源设备。跨尺度相关显微镜将作出重大贡献，了解物理现象（相互扩散，偏析，沉淀和相形成的散装和内部界面）下降到原子水平。这对于进一步提高太阳能电池和蓄电池的效率至关重要。其他应用领域将包括钙钛矿，多材料接头，如焊接铝-钢或铝-钛化合物，半导体异质结构器件，以及与弗赖堡大学和弗劳恩霍夫研究所的其他小组合作的量子材料（量子计算机的量子比特）。

The aim of this application is to substantially strengthen green energy research at the University of Freiburg by implementation of a new pole of competence. It is intended to install an atom probe tomography instrument (APT) and a focus-ion-beam/scanning electron microscopy (FIB-SEM) system. The University of Freiburg ranks ninth among German universities in terms of the acquisition of third-party funding from the German Research Foundation, but APT is not available yet, which hampers research in many fields of science. ‘Correlative Microscopy’ will be set up by combining FIB-SEM and APT with the APT as the main instrument. The main use of Correlative Microscopy will be the research on energy devices such as solar cells and batteries. Cross-scale correlative microscopy will make significant contributions to understanding physical phenomena (interdiffusion, segregation, precipitation, and phase formation in the bulk and at internal interfaces) down to the atomic level. This is critical to further improve the efficiency of solar cells and batteries. Other areas of application will include perovskites, multi-material-joints like welded aluminum-steel or aluminum-titanium compounds, semiconductor heterostructure devices, and quantum materials (quantum bits for quantum computers) in collaboration with other groups at the University of Freiburg and Fraunhofer Institutes.