Ultrasensitive surface-enhanced Raman spectroscopy using directionally arrayed gold nanoparticle dimers

Ultrasensitive surface-enhanced Raman spectroscopy using directionally arrayed gold nanoparticle dimers
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使用定向排列金纳米颗粒二聚体的超灵敏表面增强拉曼光谱

DOI:
10.1109/memsys.2015.7051029
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发表时间:
2015
期刊:
2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
影响因子:
--
通讯作者:
O. Tabata
O. Tabata
中科院分区:
--
文献类型:
--
作者:
K. Sugano;D. Matsui;T. Tsuchiya;O. Tabata

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本文报道了一种用于表面增强拉曼光谱(SERS)的超灵敏纳米结构。金纳米粒子二聚体被报道为最高的拉曼增强结构,首次被定向排列在基底上。当二聚体的颗粒连接方向与入射光的偏振方向匹配时,可以实现最高的增强。因此,所有二聚体总共可以实现巨大的增强。优化二聚体排列,实现了10 pM的检测限和0.5 s的快速检测。
This paper reports an ultrasensitive nanostructure for surface-enhanced Raman spectroscopy (SERS). The gold nanoparticle dimer, which has been reported as the highest Raman enhancing structure, was directionally arrayed on a substrate for the first time. The highest enhancement can be achieved when a particle connection direction of a dimer is matched to polarization direction of incident light. Therefore the huge enhancement can be achieved at all dimers in total. Optimizing the dimer arrangement, 10 pM limit of detection and 0.5 s rapid detection were achieved.
DOI: 10.1038/lsa.2013.74
发表时间: 2013-12-01
影响因子: 19.4
作者:
Sun, Quan;Ueno, Kosei;Misawa, Hiroaki
通讯作者: Misawa, Hiroaki