Figure 1From: Hexagonal core-shell and alloy Au/Ag nanodisks on ZnO nanorods and their optical enhancement effectSEM images of samples A, B, and C. (a) Sample A: Au/Ag nanodisk annealed at 500°C, (b) sample B: Au/Ag nanodisk annealed at 550°C, and (c) sample C: Au/Ag nanodisk annealed at 600°C. Scale bar = 100 nm.Back to article page