Synthesis and optical properties of three-dimensional porous core-shell nanoarchitectures
Synthesis and optical properties of three-dimensional porous core-shell nanoarchitectures
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DOI：
10.1021/la703621c
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发表时间：
2008-05-06
期刊：
影响因子：
3.9
通讯作者：
Chen, Ming-Wei
中科院分区：
文献类型：
--
作者：
Qian, Li-Hua;Ding, Yi;Chen, Ming-Wei
采用可控化学镀法制备了由金骨架和银壳组成的三维多孔核壳纳米结构。具有非均相界面的三维纳米复合材料的光学性质表现出明显的壳厚依赖性。优化后的壳厚约为3 ~ 5nm的多孔核壳结构在表面增强拉曼散射方面表现出明显的改善。本研究对纳米多孔金属表面改性的功能化具有重要意义。
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 similar to 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.