Field emission properties and emission stabilities of the fabricated CNT emitters after the electrical conditionings. (a) Field emission properties of the fabricated CNT emitters after the conditioning process. Five J-E measurements were performed. One arcing occurred at the maximum current density of the fourth run (pink arrow). Inset graph and image in (a) are the FN plots of the J-E curves of the CNT emitter and the wettability of metal mixture binders on the copper tip substrate after annealing at 900°C, respectively. (b) Emission stabilities of the fabricated CNT emitters at different electric fields.
Ha et al. Nanoscale Research Letters 2013 8:355 doi:10.1186/1556-276X-8-355