Figure 4
Comparative CL spectra of ZnO nanorods and nanotubes with and without buffer layer. (a) CL spectra of ZnO nanorods (b) CL spectra of ZnO nanotubes.
Figure 4 | Nanoscale Research Letters
Comparative CL spectra of ZnO nanorods and nanotubes with and without buffer layer. (a) CL spectra of ZnO nanorods (b) CL spectra of ZnO nanotubes.