In nanotechnology, understanding the surface chemistry and composition of nanomaterials is crucial for their functionality and performance. AES provides several advantages for this purpose:
1. High Sensitivity: AES is highly sensitive to surface layers, making it ideal for analyzing thin films, nanostructures, and nanoparticles. 2. Elemental Mapping: AES can generate elemental maps, offering spatial distribution information of different elements at the nanoscale. 3. Depth Profiling: By sputtering the sample surface layer by layer, AES can provide depth profiles, revealing the distribution of elements as a function of depth.