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Figure 1

From: Low temperature solution process-based defect-induced orange-red light emitting diode

Figure 1

Surface morphology, structural and optical characteristics of ZnO NRs.

Tilted view of SEM images showing ZnO NRs grown on GZO coated glass in (a) assembly of PR pattern and (b) single PR pattern. The inset of fig. (b) is the cross-sectional view of the grown ZnO NRs in the PR pattern indicating a length of 600 nm; (c) XRD pattern of single crystalline, c-axis oriented ZnO NRs; (d) The UV-Vis absorption spectra of the NRs. Inset of (d): The corresponding Tauc plot indicating a direct optical bandgap of 3.3 eV.

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