What Does HAADF Stand For?

HAADF stands for High Angle Annular Dark Field

High Angle Annular Dark Field (HAADF) is a scanning transmission electron microscopy (STEM) imaging technique that enhances the contrast of heavy elements in materials by collecting scattered electrons at high angles. This method allows for high-resolution imaging with improved depth of field, making it particularly useful in materials science, nanotechnology, and biological studies for analyzing the structures and compositions of samples. HAADF imaging provides valuable insights into the atomic arrangement and distribution of elements, contributing to the understanding of material properties and behaviors.