Skip to Main Content
Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1116/1.3566018
We fabricated a closely packed Au nanoparticle monolayer with millimeter dimensions on a hydrophilic Si substrate using a water/oil interface method. The surface-enhanced Raman scattering of Rhodamine 6G dye molecules adsorbed on these substrates was measured. For this structure, we simulated the electromagnetic-field enhancement when the laser light was focused on the sample, assuming the hexagonal unit cell. We suggest that the strong field enhancement arises from interstitial gaps between nanoparticles.