Research Article

Enhancement of Field Emission Properties of Carbon Nanotubes by ECR-Plasma Treatment

Table 1

Field emission parameters measured before and after ECR-plasma treatment.

SampleTurn-on field ()Current densityBeta ()

Before ECR-plasma CNTs2.4 V/m6.5 mA/cm2

After ECR-plasma CNTs1.6 V/m20 mA/cm2