Shape-Controlled Synthesis of Silver Nanoparticles for Plasmonic and Sensing Applications
Shape-Controlled Synthesis of Silver Nanoparticles for Plasmonic and Sensing Applications
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DOI：
10.1007/s11468-009-9088-0
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发表时间：
2009-06-01
期刊：
影响因子：
3
通讯作者：
Xia, Younan
中科院分区：
文献类型：
--
作者：
Cobley, Claire M.;Skrabalak, Sara E.;Xia, Younan
银纳米颗粒的局部表面等离子体共振是其强烈吸收和散射特定波长的光的能力的原因。吸收和散射光谱（即，作为波长的函数的截面图）可以使用米氏理论（对于球形颗粒）或离散偶极近似方法（对于任意形状的颗粒）来预测。在这篇综述中，我们简要地讨论了计算光谱的银纳米粒子具有不同的形状和合成方法可用于生产这些纳米粒子。在最近的研究中验证，理论计算和实验测量的光谱之间有很好的一致性。最后，我们讨论了新的等离子体和传感应用，使形状控制的纳米粒子。
The localized surface plasmon resonance of a silver nanoparticle is responsible for its ability to strongly absorb and scatter light at specific wavelengths. The absorption and scattering spectra (i.e., plots of cross sections as a function of wavelength) of a particle can be predicted using Mie theory (for a spherical particle) or the discrete dipole approximation method (for particles in arbitrary shapes). In this review, we briefly discuss the calculated spectra for silver nanoparticles with different shapes and the synthetic methods available to produce these nanoparticles. As validated in recent studies, there is good agreement between the theoretically calculated and the experimentally measured spectra. We conclude with a discussion of new plasmonic and sensing applications enabled by the shape-controlled nanoparticles.