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Tilted-view SEM images of (a) the aligned NWs and (b) the nonaligned NWs grown on an InAs substrate. Both scale bars are .
HRTEM image of a single nonaligned NW, scale bar, . Inset: SAED pattern.
(a) curves of the aligned and nonaligned NWs, and (b) corresponding F–N plots, which were divided into several regions.
Diagram of the energy bands near the surface of -semiconductor nanostructures: (a) Without and , (b) , and (c) .
FE current stability over time.
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