Electron microscopy

• Electron microscopy


  A technique that uses a beam of electrons instead of light to visualize very small objects
• Electron microscopy


  • Achieves a resolution 2,000 times better than light microscopy
  • Can resolve objects up to 0.1 nanometers under good conditions
• Transmission electron microscopy (TEM)


  Electron beam passes through the specimen, produces 2D flat images, requires very thin specimens
• Scanning electron microscopy (SEM)


  Electron beam scatters from the surface of the specimen, produces 3D images, does not require thin specimens but requires metal coating