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(a) FESEM image of well-aligned ZnO nanorods. (b) HRTEM image and the corresponding electron diffraction pattern (inset) of ZnO nanorods.
(Color online) The (a) FESEM and (b) CL images of a single ZnO nanorod with a diameter of . (c) Intensity normalized CL emission spectra of a single ZnO nanorod measured at room temperature, for diameters of 50, 65, 100, 120, and . The dash line indicates the emission peak position of the bulk ZnO film, which is at (Ref. 10).
Experimental (solid circle) and fitted data (solid line) of the energy shift, , of the CL emission peak energies as a function of .
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