近红外和可见激发的铝表面增强拉曼散射。
Surface-enhanced Raman scattering on aluminum using near infrared and visible excitation.
机构信息
Danmarks Tekniske Universitet DTU, Department of Micro- and Nanotechnology, 2800 Kgs. Lyngby, Denmark.
出版信息
Chem Commun (Camb). 2014 Apr 11;50(28):3744-6. doi: 10.1039/c4cc00010b.
PMID:24577020
Abstract
We observed strong surface-enhanced Raman scattering on discontinuous nanostructured aluminum films using 785 nm excitation even though dielectric constants of this metal suggest plasmon supported spectroscopy in the ultraviolet range. The excitation of SERS correlates with plasmon resonances in the 1.3-2.5 eV range identified in electron energy loss spectra.
摘要
我们使用 785nm 的激发光观察到了非连续纳米结构铝膜上的强表面增强拉曼散射，尽管这种金属的介电常数表明等离子体支持的光谱在紫外范围内。SERS 的激发与电子能量损失谱中确定的 1.3-2.5eV 范围内的等离子体共振相关。
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