Figure 4From: Hexagonal core-shell and alloy Au/Ag nanodisks on ZnO nanorods and their optical enhancement effectTEM image of Ag/Au nanodisks and EDS mapping for Au and Ag elements. (a) TEM image of Ag/Au nanodisks annealed at 500°C on a ZnO nanorod. Scale bar = 20 nm. EDS mapping for (b) Au and (c) Ag elements.Back to article page