Abstract
In this study, the field emission characteristics of carbon nanotube field emitters and arrays fabricated by carbon nanotube implantation process are analyzed by the combination of the finite-difference time-domain and particle-in-cell methods. Carbon nanotubes with different shapes are simulated and their electron trajectory properties are compared. A spacing optimized carbon nanotube field emission array is developed and the impact of random distribution in carbon nanotube length and tilt angle is also investigated. These results are useful to develop an optimized carbon nanotube field emission array that fits current fabrication capabilities.
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