Figure 3

UV–vis absorption and PL spectra of the Au NPs/QDs nanocomposite films with Au NPs in 30- and 80-s deposition times. (a) The absorption spectra of Au NPs/QDs films with Au NPs in 30-s (blue line) and 80-s (red line) deposition times. (b) The PL spectra of Au NPs/QDs films with Au NPs in 30-s (blue line) and 80-s (red line) deposition times. The inset showed the AFM image of Au NPs in 30-s deposition times, AFM image of Au NPs in 80-s deposition times, and SEM image of Au NPs in 80-s deposition times.