SEM is indispensable in nanotechnology for several reasons: 1. High Resolution: SEMs can achieve resolutions down to a few nanometers, allowing researchers to visualize nanostructures with exceptional clarity. 2. Depth of Field: SEM images have a large depth of field, making it easier to observe three-dimensional structures. 3. Elemental Analysis: Coupled with Energy-Dispersive X-ray Spectroscopy (EDS), SEMs can provide elemental composition data, which is crucial for characterizing materials at the nanoscale. 4. Versatility: SEMs can be used with a wide range of samples, including biological specimens, metals, and nanoparticles.
