Figure 3From: Annealing effects on the optical and morphological properties of ZnO nanorods on AZO substrate by using aqueous solution method at low temperatureRT PL spectra of ZnO NRs for different annealing duration at 400°C. Inset: illustrative diagrams for recombination processes that have taken place in (1) NBE in the as-grown sample, (2) NBE in the annealed sample, and (3) defect emission accompanied by nonradiative recombination.Back to article page