Plasmon-Enhanced Fluorescence and Spectral Modification in SHINEF
Plasmon-Enhanced Fluorescence and Spectral Modification in SHINEF
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DOI：
10.1021/jp205997u
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发表时间：
2011-10-27
影响因子：
3.7
通讯作者：
Moreno, Fernando
中科院分区：
文献类型：
--
作者：
Aroca, Ricardo F.;Teo, Geok Yi;Moreno, Fernando
壳隔离的金纳米颗粒为发光增强提供了可靠、便携且高效的底物，从而产生表面增强荧光，称为 SHINEF。目前工作的目标有两个：首先，调整金核的尺寸和壳厚度以最大程度地增强 SHINEF；其次，使用壳隔离纳米颗粒 (SHIN) 来演示荧光光谱的光谱轮廓修改。结果表明，使用具有两种不同发射（单体和准分子）的朗缪尔-布洛杰特单层染料，纳米结构的远场辐射调节位于纳米结构近场区域的目标荧光团的观察到的发射，维持局部表面等离子体共振（LSPR）。
Shell-isolated gold nanoparticles provide a reliable, portable, and efficient substrate for luminescence enhancement giving surface-enhanced fluorescence, termed SHINEF. The objectives of the present work are 2-fold: first, tuning the size of the gold core and the shell thickness for maximum SHINEF enhancement, and second, to use the shell isolated nanoparticles (SHINs) to demonstrate the spectral profile modification of the fluorescence spectrum. It is shown, using Langmuir-Blodgett monolayers of a dye with two distinct emissions (monomer and excimer), that the far field radiation of the nanostructure modulate the observed emission from the target fluorophore located in the near field zone of the nanostructure sustaining localized surface plasmon resonances (LSPR).