Optical properties of star-shaped gold nanoparticles
Optical properties of star-shaped gold nanoparticles
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DOI：
10.1021/nl052409y
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发表时间：
2006-04-01
期刊：
影响因子：
10.8
通讯作者：
Hafner, JH
中科院分区：
文献类型：
--
作者：
Nehl, CL;Liao, HW;Hafner, JH
本文报道了约100纳米星形金纳米粒子的合成、结构和光学性质。单粒子光谱测量表明，这些纳米颗粒具有多个等离子体共振，导致具有多个光谱峰的极化依赖散射，这些光谱峰对应于星形结构上的不同尖端。等离子体共振也被发现对局部介电环境非常敏感。
Here we report the synthesis, structure, and optical properties of ca. 100 nm star-shaped gold nanoparticles. Single particle spectroscopy measurements revealed that these nanoparticles have multiple plasmon resonances resulting in polarization-dependent scattering with multiple spectral peaks, which correspond to the different tips on the star-shaped structure. The plasmon resonances were also found to be extremely sensitive to the local dielectric environment.