Effect of AZO Substrates on Self-Seeded Electrochemical Growth of Vertically Aligned ZnO Nanorod Arrays and Their Optical Properties

Figure 13

PL spectra of as grown ZnO NRAs (grey dashed) and after annealing at 250°C for 2.5 h (black solid). The PL spectra were recorded with an excitation wavelength of 325 nm.