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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Highly ordered Au-decorated Ag nanorod arrays as an ultrasensitive and reusable substrate for surface enhanced Raman scattering
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Highly ordered Au-decorated Ag nanorod arrays as an ultrasensitive and reusable substrate for surface enhanced Raman scattering

机译：高度有序的AU装饰AG Nanorod阵列，作为用于表面增强拉曼散射的超敏和可重复使用的基材

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摘要

For surface-enhanced Raman spectroscopy (SERS) substrates, complexity of the fabrication process, sensitivity and stability are factors that need to be considered. We report a simple and novel method for preparing an effective substrate that greatly enhances SERS signals. The SERS substrate is fabricated by selectively electroless deposition of Ag nanoparticles in the highly ordered porous anodized aluminum oxide (AAO) template and then etching it to form Ag nanorod bundles structure, so that the Raman enhancement occurs in the gap between the nanorods and the top of the nanorod bundle, which is verified by finite element analysis. A peculiarity of this method is that this is the first time to synthesize Ag nanorod arrays structure by using it. The results indicated that this prepared substrate has special micro-nano structure and when rhodamine 6 G is selected as the detection reagent, the detection limit is as low as 10(-16) M with excellent recyclability. This outstanding array structure has a promising practical application in SERS field.
机译：对于表面增强的拉曼光谱（SERS）基板，制造过程的复杂性，灵敏度和稳定性是需要考虑的因素。我们报告了一种简单而新颖的制备有效基板的方法，其大大增强了SERS信号。通过在高度有序的多孔阳极氧化铝氧化铝（AAO）模板中选择性地无能沉积Ag纳米颗粒，然后蚀刻以形成Ag纳米棒束结构，使拉曼增强发生在纳米棒和顶部之间的间隙中，以使SER纳米颗粒进行制造。纳米棒束，通过有限元分析验证。这种方法的特殊性是，这是第一次通过使用它来合成Ag Nanorod阵列结构。 The results indicated that this prepared substrate has special micro-nano structure and when rhodamine 6 G is selected as the detection reagent, the detection limit is as low as 10(-16) M with excellent recyclability.这种出色的阵列结构在Sers领域具有有希望的实际应用。

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