Figure 1.

SEM images and XRD pattern of ZnO. (a,b) SEM images of as-grown ZnO nanorods and nanotubes on GaN. (c) XRD pattern of ZnO grown on GaN substrate.

Abbasi et al. Nanoscale Research Letters 2013 8:320   doi:10.1186/1556-276X-8-320
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