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FESEM images and stability measurement of the fabricated CNT emitters using metal mixture binders. (a) FESEM image of a CNT/metal mixture binder coated on a kovar tip substrate annealed at 750°C. Inset: vertically standing CNTs formed on the metal tip. (b) Stability measurement of the CNT emitter fabricated using the metal mixture binder with time. (c) FESEM image of the CNT emitter fabricated using the metal mixture binder after the field emission property measurement.
