What Are the Advantages of Nanoscale Field Emission Sources?
There are several benefits to using nanoscale materials for field emission sources: 1. High Emission Current Density: Nanoscale emitters can achieve higher emission current densities due to their sharp tips and high aspect ratios. 2. Low Operating Voltage: The strong electric fields at the tips of nanomaterials allow for electron emission at lower voltages. 3. Enhanced Stability: Nanomaterials, such as carbon nanotubes, offer improved thermal and chemical stability, making them suitable for long-term applications.