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XRD pattern of ZnO nanoscrews on Si(100) formed at 480 °C.
(a) SEM image of the aligned ZnO nanoscrews; (b) top view of the 18 sides of nanotips, left inset showing the lower stem section; (c) the EBSD pattern of the ZnO nanoscrew tops; and (d) EDS of the ZnO nanoscrews.
(a) SAED pattern of a single ZnO nanoscrew; (b) schematic depiction showing the crystal habit planes of the ZnO nanoscrews, top inset showing top constitution of the ZnO nanoscrews, and bottom inset showing the stem constitution.
(a) curves of ZnO nanoscrews; (b) stability of the emission current over time.
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