Blue-shift and Narrowing of Plasmon Resonance Band of Silver Nanoparticles Exposed to Plasma
Blue-shift and Narrowing of Plasmon Resonance Band of Silver Nanoparticles Exposed to Plasma
复制标题
暴露于等离子体的银纳米粒子等离子共振带的蓝移和变窄
DOI：
10.1007/s11468-011-9233-4
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发表时间：
2011
期刊：
影响因子：
3
通讯作者：
M. Yoshikawa
中科院分区：
文献类型：
--
作者：
K. Kawaguchi;M. Saito;K. Takahiro;S.Yamamoto;M. Yoshikawa
我们已经证明，等离子体处理的银纳米粒子带来蓝移和缩小其局部表面等离子体共振。表面增强拉曼散射分析表明，吸附在银表面的碳氢化合物被有效地去除等离子体曝光。发现烃类的拉曼谱线强度的降低与蓝移有很好的相关性。我们的研究结果表明，一个最重要的因素显着差异的等离子体共振波长和线宽的银纳米粒子之间的大多数实验数据和Mie的理论计算是由于杂质吸附在银表面。
We have demonstrated that plasma treatments of silver nanoparticles bring about blueshift and narrowing in their localized surface plasmon resonance. Surface-enhanced Raman scattering analysis revealed that hydrocarbons adsorbed on silver surfaces were removed effectively by plasma exposure. It was found that the decrease in Raman line intensity for hydrocarbons was correlated well with the blueshift. Our findings indicate that one of the most important factors for remarkable differences in plasmon resonance wavelengths and line widths reported for the silver nanoparticles supported on substrates between most of the experimental data and calculations by Mie’s theory is due to the impurity adsorption on silver surfaces.