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Comparison of electrical properties of carbon nanotube (CNT) emitter with treatment condition. DC–direct current.
| Treatment | Driving | Turn on Field (V/μm) | Current Density at 5.4 V/μm (mA/cm2) |
|---|---|---|---|
| As-grown | 3.6 | 4.5 | |
| Annealed | DC | 3.3 | 48 |
| Electrically aged | 3 | 97 |
