Cathodoluminescence Characterization of ZnO Nanorods Grown by Wet Chemical Synthesis

Abstract

We demonstrate cathodoluminescence measurements of individual ZnO nanorods synthesized by wet chemical method. Strong UV emission and relatively weak orange-red emission are observed. Energy-selective imaging technique reveals that the UV emissions are spatially modulated due to the stacking fault defects, while the orange-red luminescence is uniform over the entire nanorods.