Nano-petri-dish array assisted glancing angle sputtering for Ag-NP assembled bi-nanoring arrays as effective SERS substrates.
Nano-petri-dish array assisted glancing angle sputtering for Ag-NP assembled bi-nanoring arrays as effective SERS substrates.
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DOI：
10.1021/am502793d
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发表时间：
2014-05
影响因子：
9.5
通讯作者：
Xiaoye Hu;G. Meng;Qing Huang;Chuhong Zhu;Bensong Chen;Zhulin Huang;Fadi Li;Zhaoming Wang
中科院分区：
文献类型：
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作者：
Xiaoye Hu;G. Meng;Qing Huang;Chuhong Zhu;Bensong Chen;Zhulin Huang;Fadi Li;Zhaoming Wang
报道了利用纳米培养皿阵列辅助掠角银溅射制备银纳米颗粒(Ag-NP)组装双纳米阵列作为表面增强拉曼散射(SERS)衬底的方法。通过控制溅射银的持续时间，双纳米环中银纳米粒子之间的间隙可以调节以获得最佳的电磁场增强，并且有序的双纳米环阵列确保了拉曼测量的良好的重复性。如制备的Ag-NPs组装纳米阵列表现出良好的表面增强拉曼散射性能，不仅检测到1×10(-12)M的罗丹明6G，而且识别出浓度低至1×10(-9)M的多氯联苯，在环境中痕量有机污染物的检测方面显示出巨大的潜力。
Nano-petri-dish array assisted glancing angle Ag-sputtering was reported to synthesize Ag-nanoparticle (Ag-NP) assembled bi-nanoring arrays as surface-enhanced Raman scattering (SERS) substrates. By manipulating the sputtering-Ag duration, the gaps between the Ag-NPs in the bi-nanorings are tunable to acquire optimal electromagnetic field enhancement, and the ordered bi-nanoring arrays ensure excellent reproducibility for Raman measurement. Such as-fabricated Ag-NPs assembled nanoring arrays exhibit excellent SERS performance, not only 1 × 10(-12) M rhodamine 6G has been identified, but also polychlorinated biphenyls with a low concentration down to 1 × 10(-9) M has been recognized, showing great potential in the detection of trace organic pollutants in the environment.