Jump to main content
Jump to site search


Close-packed 3D Plasmonic Superlattice of Truncated Octahedral Gold Nanoframes

Abstract

We report the surface-enhanced Raman scattering (SERS) enhancement of three-dimensional (3D) close-packed plasmonic superlattices of truncated octahedral gold nanostructures. Experimentally, we resolved two different types of hot spots; one originates from the face-to-face contacts and the other is from the edge-to-edge contacts among the 3D close-packed plasmonic superlattice of gold nanostructures. The high degree of homogeneity of truncated octahedral Au@Pt nanoparticles (TOh Au@Pt NPs) and truncated octahedral Pt@Au nanoframes (TOh Pt@Au NFs) allowed them to self-assemble into remarkable 3D close-packed plasmonic superlattices. The morphological evolution and corresponding optical behavior of TOh Pt@Au NFs were systematically monitored during each synthetic process. The measured SERS enhancement on the hot spots from the edge-to-edge contacts of TOh Pt@Au NFs was five times greater than the SERS response from the analogous face-to-face contacts of TOh Au@Pt NPs under the same given experimental conditions. The hollow interior and well-defined structural morphology of TOh Pt@Au NFs will allow researchers to design highly-programmable 3D plasmonic superlattices for efficient SERS enhancement.

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 22 Apr 2017, accepted on 10 May 2017 and first published on 11 May 2017


Article type: Communication
DOI: 10.1039/C7NR02856C
Citation: Nanoscale, 2017, Accepted Manuscript
  •   Request permissions

    Close-packed 3D Plasmonic Superlattice of Truncated Octahedral Gold Nanoframes

    J. Yoon, H. Jang, I. Jung and S. Park, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR02856C

Search articles by author