Figure 6.

FESEM images of the fabricated CNT emitter on a copper tip substrate. (a) FESEM image of a CNT/metal binder coated on a copper tip substrate using the metal mixture binder annealed at 900°C. (b) Magnified FESEM image of the CNT/metal mixture binder shown in (a). (c, d) Magnified FESEM images of the regions marked in (b).

Ha et al. Nanoscale Research Letters 2013 8:355   doi:10.1186/1556-276X-8-355
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