FESEM images and stability test of the fabricated CNT emitters using silver NPs. (a) FESEM image of the fabricated CNT emitter using silver NPs on tungsten metal tip. (b) Stability test of the fabricated CNT emitter with time. (c) FESEM image of the CNT emitter after emission stability experiment. Severe damage of the CNT/silver NP mixture was observed as compared with (a).
Ha et al. Nanoscale Research Letters 2013 8:355 doi:10.1186/1556-276X-8-355