Simultaneous SERS and surface-enhanced fluorescence from dye-embedded metal core-shell nanoparticles.
Simultaneous SERS and surface-enhanced fluorescence from dye-embedded metal core-shell nanoparticles.
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DOI：
10.1039/c4cp01199f
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发表时间：
2014-04
期刊：
影响因子：
--
通讯作者：
Yan Zhou;Peng Zhang
中科院分区：
文献类型：
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作者：
Yan Zhou;Peng Zhang
我们展示了一种通过在核和壳之间嵌入染料分子来制备同时显示SERS和表面增强荧光(SEF)活性的金-核-银-壳纳米颗粒的方法。聚电解质用于调整芯层和壳层之间的间距和染料位置。逐层聚电解质沉积可以作为一种有效和灵活的方式将各种类型的染料分子引入到纳米结构中。光谱测量的结果揭示了SERS和SEF之间的复杂性。
We demonstrate a methodology to prepare Au-core-Ag-shell nanoparticles displaying both SERS and surface-enhanced fluorescence (SEF) activities simultaneously by embedding dye molecules between the core and the shell. Polyelectrolytes are used to adjust the spacing and the dye position between the core and the shell. Layer-by-layer polyelectrolyte deposition can serve as an effective and flexible way to introduce various types of dye molecules into the nanostructures. Results from the spectral measurements shed light on the intricacy between SERS and SEF.