Review Article
Synthesis, Characterization, and Applications of ZnO Nanowires
Figure 18
EL spectra of ZnO nanowires/p-GaN/ZnO nanowires heterostructure at a DC current of 20 mA. The inset is a photograph of the emission of blue light by the heterojunction LED under dc bias (reproduced with permission from [152] © 2009 American Institute of Physics).
