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ZnO nanowire field emitter arrays with non-coplanar focus electrode structure was designed. A simulation was conducted to verified the focusing ability of the focus electrode structure. The designed structure was realized successfully and the growth condition of ZnO nanowires in the structure was studied.
The feasibility of preparation of nanowire on glass favors the realization of large area devices, which makes nanowire field emitter arrays (FEAs) good candidate for large-area vacuum microelectronics applications. In this study, a coaxial gated ZnO nanowire FEAs was fabricated. Effective emission current modulation by the gate voltage was achieved and the addressing capability was demonstrated.
The effects of field emission cycles applied on the screen printed carbon nanotube (CNT) cold cathode were studied. CNT emitters were vertically well aligned and the emission images were visibly improved after the field treatment. The mechanism of the treatment was investigated using scanning electron microscopy. The mechanism may involve the erasion of hot spot and alignment of CNT
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