Figure 6

(a,b) show the SEM image and CL spectra of a scaly ZnO microrod, respectively. The defect band emission can be observed in the inset of (b). The CL mapping images of NBE and defect emission are show in (c,d), respectively.

(a,b) show the SEM image and CL spectra of a scaly ZnO microrod, respectively. The defect band emission can be observed in the inset of (b). The CL mapping images of NBE and defect emission are show in (c,d), respectively.