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Field emission properties of electrochemically deposited gold nanowires
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Image of FIG. 1.
FIG. 1.

SEM micrographs of samples (a) A, (b) C, (c) D, and (d) E showing nanowires of different number densities and lengths. The scale bar corresponds to . The inset of d shows a NW tip (scale ).

Image of FIG. 2.
FIG. 2.

Electric field maps required for a current of for samples A, C, D, and E (W anode with tip radius , scanned area ).

Image of FIG. 3.
FIG. 3.

(a) Current map of sample E showing at , (b) locally measured curves and FN plot for a single emitting site, (c) FE current limits as a function of value for sample D just before partial or full destruction (black) or survival of emitters (gray dots), and (d) mean value vs length of NWs for all samples, (expected deviation of E encircled) with histogram of ln for 12 stable emitting sites of sample E (inset).

Image of FIG. 4.
FIG. 4.

Integral measurements of NWs with anode diameter: (a) FN curves for thin NWs (sample E) with varying vacuum gap, and (b) vs plot showing the linear dependence for all Au NW cathodes.


Generic image for table
Table I.

Overview of Au NWs samples reported in this letter.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Field emission properties of electrochemically deposited gold nanowires