Figure 1

Top-view and cross-sectional FE-SEM images of the IZO NRs with different In concentrations: (a) 0%, (b) 2% and (c) 5% and (d) variations of the average diameter, length and density. (e) XRD patterns of the p-GaN film and UZO and IZO (2% and 5%) NRs. The inset in Fig. 1(e) shows the enlarged view of the (002) peak.