Figure 3.

aAbsorption cross section versus wavelength in Ag–Au core–shell structure nanowires with different gold wall thickness;babsorption cross section versus wavelength in Au–Ag core–shell structure nanowires with different silver wall thickness. The core radius is 10 nm

Zhu Nanoscale Research Letters 2009 4:977-981   doi:10.1007/s11671-009-9344-4