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Field emission properties of individual zinc oxide nanowire field emitter
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10.1116/1.2919146
/content/avs/journal/jvstb/26/3/10.1116/1.2919146
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/26/3/10.1116/1.2919146
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Figures

Image of FIG. 1.
FIG. 1.

(a) SEM image of a single ZnO nanowire field emitter attached on a Pt sharp tip. (b) SEM image of a single ZnO nanowire field emitter grown on a Pt sharp tip. (c) SEM image of ZnO nanowires field emitter grown on a Pt blunt tip. (d) TEM image of Pt tip shown in (b). (e) HRTEM image of a single ZnO nanowire shows that it is a single-crystal nanowire. The inset shows the selected area electron diffraction pattern at the base of the nanowire.

Image of FIG. 2.
FIG. 2.

behavior of single ZnO nanowire field emitter shown in Fig. 1(b). Voltage is swept-up (black line) from at step size before sweep-down (gray line). The inset shows the respective FN plots.

Image of FIG. 3.
FIG. 3.

FEM pattern of single ZnO nanowire field emitter taken at phosphor screen bias of .

Image of FIG. 4.
FIG. 4.

(a) FEM pattern of multiple ZnO nanowire emitter at room temperature. (b)–(d) FEM patterns at elevated tip temperatures.

Image of FIG. 5.
FIG. 5.

(a) FN plots of ZnO nanowire right after thermal annealing at for , after 3 doses of exposure to with /dose at and after 6 doses of exposure to with /dose at . [(b)–(d)] Different behaviors of the adsorbate-free ZnO nanowire emitter after thermal-field desorption.

Image of FIG. 6.
FIG. 6.

(a) curves of ZnO nanowire emitter after annealing at for (left), after exposure (center), and after exposure (right). Voltage was swept-up (black) at before being swept-down (gray). is anode bias at FE current. (b) The FE current at constant anode bias of before UV illumination, during UV illumination and post-UV illumination at vacuum level of .

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/content/avs/journal/jvstb/26/3/10.1116/1.2919146
2008-05-07
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Field emission properties of individual zinc oxide nanowire field emitter
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/26/3/10.1116/1.2919146
10.1116/1.2919146
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