Nehl Colleen L, Liao Hongwei, Hafner Jason H
Department of Physics & Astronomy, Rice University, Houston, Texas 77005, USA.
Nano Lett. 2006 Apr;6(4):683-8. doi: 10.1021/nl052409y.
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.
在此，我们报告了约100纳米星形金纳米颗粒的合成、结构及光学性质。单颗粒光谱测量表明，这些纳米颗粒具有多个等离子体共振，导致产生与多个光谱峰相关的偏振依赖散射，这些光谱峰对应于星形结构上的不同尖端。还发现等离子体共振对局部介电环境极为敏感。
