Researchers in Professor Ute Kaiser’s group at the University of Ulm used the CEOS Energy Filtering and Imaging Device to perform zero-loss energy filtered imaging with the Apollo camera. Their goal was to image a beam-sensitive triazine-based 2D polymer (T-2DP).

Working at a beam dose of just 5 e⁻/Ų, they were able to image the lattice of T-2DP with a resolution of 6.7 Å. This is something that they had found to be impossible with a conventional scintillator coupled camera because beam damage becomes too severe before the lattice can be resolved. This paper highlights the importance of direct detectors for imaging beam sensitive materials.

Professor Kaiser’s group has published their results in the Journal Micron. A link to their paper is available here.