Spectroscopic properties of dye aggregates on the spherical and nonspherical noble metal nanoparticles

我们报道了菁染料J-聚集体包覆的银纳米粒子表现出特征的光谱性质。在这项研究中，我们已经研究了颗粒形状和尺寸上的特征光谱性质的球形和非球形的贵金属纳米粒子覆盖染料聚集体的效果。作为这项研究的结果，我们发现的特征光谱特性，这被认为是起源于激子和表面等离子体激元之间的相互作用，改变与颗粒的形状和尺寸。

We have reported that silver nano-particles covered with J-aggregate of cyanine dye showed the characteristic spectroscopic properties. In this study, we have examined the effect of particle shapes and sizes on the characteristic spectroscopic properties of the spherical and nonspherical noble metal nanoparticles covered with dye aggregate. As a result of this study, we found that the characteristic spectroscopic properties, which are presumed to be originated from the interaction between exciton and surface plasmon, changed with the particle shapes and sizes.