Synthesis and optical properties of three-dimensional porous core-shell nanoarchitectures.
Three-dimensional porous core-shell nanostructures consisting of gold skeletons and silver shells were fabricated by controllable electroless plating. Optical properties of the 3D nanocomposite with a heterogeneous interface exhibit a significant shell-thickness dependence. The porous core-shell structure with an optimized shell thickness of approximately 3-5 nm exhibits a considerable improvement in surface-enhanced Raman scattering. This study has important implications in the functionalization of nanoporous metals by surface modification.
Qian
Li-Hua
LH
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
Ding
Yi
Y
Fujita
Takeshi
T
Chen
Ming-Wei
MW
D006046:Gold / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D016062:Porosity; D012834:Silver / Q000737:chemistry; D013053:Spectrophotometry
D012834:Silver; D006046:Gold