Study of thermal-field emission properties and investigation of temperature dependent noise in the field emission current from vertical carbon nanotube emitters

Figure: shows strong enhancement in the field emission current as well as new electron emission site due to temperature (a) AFM morphology for vertical CNT, (b) FEM image of vertical CNT at 1500 K and applied voltage of 1400 V, (c) I-V plots at RT, 1500 K, power spectral density versus temperature used for activation energy calculation149