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Here we propose a model to simulate the influence of atomistic properties of field emitters on the field emission current. As an example, we modeled the field emission from a zigzag-single walled carbon nanotube. By a modification in the self-energy in non-equilibrium Green's function formalism, we simulated the field emission current, considering quantum transport of electrons within the carbon nanotube...
In this report, we present a modification in non-equilibrium Green's function method to investigate structural effects of the emitter on field emission current. Effect of applied uniaxial strain can also be studied using our modified formalism. Moreover a practical method to consider the effect of device parameters such as channel length, anode-cathode separation and gate potential can be provided...
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