SEM top views of (a) AlZnO and (b)AlInZnO nanorod arrays; the scale bars are . EDS spectra of (c) AlZnO and (d) AlInZnO nanorods array.
PL spectra of (a) AlZnO and (b) AlInZnO nanorod arrays at 10 K in the UV range, and (c)AlZnO and (d) AlInZnO nanorod arrays at 10 K in the energy range of 1.8–3.6 eV.
Room temperature PL spectra of AlZnO and AlInZnO nanorods.
XRD patterns of AlZnO and AlInZnO nanorod arrays.
Evolution of the PL spectra as a function of temperature for (a) AlZnO nanorods and (b) AlInZnO nanorods in the UV range.
Temperature-dependent excitonic peak energies of the AlZnO and AlInZnO nanorods. The formulas given in the figure are the result of simulations.
Reciprocal temperature-dependent intensities of the of (a) AlZnO and (b) AlInZnO nanorods. The formulas and the red solid line in the figure are the result of simulation. The dotted line in Fig. 7(a) represents the curves simulated by activation energies of 6.6 or 18.2 meV. The inset in Fig. 6(b) shows the reciprocal temperature-dependent intensities of of InZnO nanorods and the corresponding fitting result.
Temperature-dependent PLE spectra of (a) AlZnO and (b) AlInZnO nanorod arrays at 10 K. The dotted lines indicate the evolutions of the 3.335, 3.362, 3.379, and 3.388 eV positions.
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