Figure 6From: Nanosilver Colloids-Filled Photonic Crystal Arrays for Photoluminescence EnhancementPhotoluminescence spectra around the 618-nm peak. Sample 3 had QDs only on a plain glass substrate, sample 4 had QDs deposited on a patterned glass substrate, and sample 5 had QDs deposited on the silver nanoarray with a 60-nm SiO2 spacer layerBack to article page