Effect of layer structures of gold nanoparticle films on surface enhanced Raman scattering.
作者： Min Kyung Oh , Sukang Yun , Seong Kyu Kim , Sungho Park
DOI: 10.1016/J.ACA.2009.07.025
关键词:
摘要: Using a method of collecting nanoparticles at water/hexane interface in close-packed monolayer film and transferring such films onto solid substrate, three-dimensional multilayer were formed. The packed gold nanospheres (NS) with 26 nm diameter or nanorods (NR) 31 74 length. We investigated variations the surface enhanced Raman scattering (SERS) intensities from nanoparticle as layer compositions changed. stacked NR layers generated much higher SERS intensity than those NS layers. both kinds increased number increased. However, when alternately, varied zigzag fashion. It was found that structure top plays distinguishable role generating strong enhancement while lower contribute to less dependency on structures. Interlayer coupling well intralayer considered order explain observations.
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