Optical Properties of Rodlike Metallic Nanostructures: Insight from Theory and Experiment
Optical Properties of Rodlike Metallic Nanostructures: Insight from Theory and Experiment
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DOI：
10.1021/jp902448f
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发表时间：
2009-09-03
影响因子：
3.7
通讯作者：
Pachter, Ruth
中科院分区：
文献类型：
--
作者：
Duan, Jinsong;Park, Kyoungweon;Pachter, Ruth
在这项工作中，我们将金纳米棒 (AuNR) 和金银核壳纳米棒结构的合成与局域表面等离子体共振 (LSPR) 的计算预测相结合，以便更好地了解光学响应，这些结构在所有维度上都具有窄尺寸分布，并且具有广泛的纵横比。自组装 AuNR 也通过实验和理论进行了合成和表征。此外，还了解了不同几何形状、介电环境和成分下金银核壳纳米棒状结构的生长。即使对于具有大纵横比的 AuNR、Au-Ag 核壳纳米结构和 AuNR 对，也可以通过受控和精确的合成来验证计算结果并开发结构-性能关系。这些反过来将有助于 AuNR 和相关核壳纳米结构的实验表征。
In this work, we combined synthesis of Au nanorods (AuNRs) and Au-Ag core-shell nanorod-like structures, of narrow size distribution in all dimensions and for a broad range of aspect ratios, with computational prediction of the localized surface plasmon resonance (LSPRs), in order to gain a better understanding of the optical response. Self-assembled AuNRs were also synthesized and characterized experimentally and theoretically. In addition, an understanding of the growth of Au-Ag core-shell nanorod-like structures for varying geometries, dielectric environments, and compositions was obtained. Controlled and precise synthesis, even for AuNRs with large aspect ratios, for Au-Ag core-shell nanostructures and AuNR pairs, enabled validation of the computational results, and development of structure-property relationships. These will, in turn, assist in the experimental characterization of AuNRs and related core-shell nanostructures.