Henzie Joel, Lee Jeunghoon, Lee Min Hyung, Hasan Warefta, Odom Teri W
Department of Chemistry and Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
Annu Rev Phys Chem. 2009;60:147-65. doi: 10.1146/annurev.physchem.040808.090352.
This review focuses on nanofabrication tools, based on soft lithography, which can generate a wide range of noble-metal structures with exceptional optical properties. These techniques offer a scalable and practical approach for producing arrays of complementary plasmonic structures (nanoholes and nanoparticles) and, in addition, expand the possible architectures of plasmonic materials because the metal building blocks can be organized over multiple length scales. We describe the preparation and characterization of five different systems: subwavelength nanohole arrays, finite arrays of nanoholes, microscale arrays of nanoholes, multiscale arrays of nanoparticles, and pyramidal particles. We also discuss how the surface plasmon resonances of these structures can be tuned across visible and near-infrared wavelengths by varying different parameters. Applications and future prospects of these nanostructured metals are addressed.
本综述聚焦于基于软光刻技术的纳米制造工具，这些工具能够生成具有卓越光学特性的多种贵金属结构。这些技术为生产互补等离子体结构阵列（纳米孔和纳米颗粒）提供了一种可扩展且实用的方法，此外，还拓展了等离子体材料可能的结构形式，因为金属构建单元可以在多个长度尺度上进行组织。我们描述了五种不同系统的制备和表征：亚波长纳米孔阵列、有限纳米孔阵列、微米级纳米孔阵列、纳米颗粒多尺度阵列以及金字塔形颗粒。我们还讨论了如何通过改变不同参数，在可见光和近红外波长范围内调节这些结构的表面等离子体共振。本文还探讨了这些纳米结构金属的应用及未来前景。
