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(a) SEM image of the nanowires grown on an oxidized Si substrate. (b) Magnified SEM image of nanowires with spearlike tips. (c) TEM image.
XRD pattern of ZnO nanowires.
(a) TEM image of a nanowire. The upper inset is SAED; the lower inset is EDX. Scale bar: (b) HRTEM of the corresponding nanowire. Scale bar: .
Raman spectrum of ZnO nanowires grown on an oxidized Si substrate. The excitation was done by a laser line.
(a) SEM image of as-prepared samples fabricated without the introduction of oxygen. The inset is for EDX. (b) SEM image of ZnO nanowires around .
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