Figure 2
From: Enhanced UV photosensitivity from rapid thermal annealed vertically aligned ZnO nanowires
UV-Vis absorption and photoluminescence spectra of the as-grown and RTA-treated ZnO NWs. (a) UV-Vis specular reflectance spectra of the as-grown and RTA-treated ZnO NWs grown at 750°C. Inset shows the calculated absorbance spectra of the corresponding NWs from reflectance spectra. (b) Room temperature PL spectra of the as-grown and RTA-treated ZnO NWs. A significant enhancement in UV emission and decrease in green emission are observed after RTA treatment.