Figure 1
From: Ag/Au Alloyed Nanoislands for Wafer-Level Plasmonic Color Filter Arrays

Large-area Ag/Au alloyed nanoislands for tuning localized surface plasmon resonance in a broadband visible spectrum. (a) The wafer-level nanofabrication method. An ultrathin Ag/Au nanocomposite film is concurrently evaporated on a substrate by using thermal evaporation. (b) The nanocomposite film is transformed into completely miscible Ag/Au alloyed nanoislands after solid-state dewetting. The metal evaporation rate simply controls the composition ratio of the nanocomposite, which determines the LSPR wavelength of the alloyed nanoislands in the broadband visible spectrum.