Figure 3From: Hexagonal core-shell and alloy Au/Ag nanodisks on ZnO nanorods and their optical enhancement effectTEM image of sample A and EDS mapping for Au, Ag, and Zn elements. (a) TEM image of one nanodisk in sample A (low temperature annealing). Black arrow and white line indicate the twin boundary. Scale bar = 2 nm. EDS mapping for (b) Au, (c) Ag, and (d) Zn elements.Back to article page