| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1488057 | Materials Research Bulletin | 2014 | 4 Pages |
•Au nanopuncheons with high-index facets have been prepared by seed-mediated growth.•The nanopuncheons are enclosed by 24 planes of {2 5 0}, {3 0 1} and 2 {0 1 0} planes.•The nanopuncheons showed high SERS activity toward Rhodamine 6G.
Au nanopuncheons with exposed high-index facets have been synthesized in high-yield by employing didodecyldimethylammonium bromide (DDAB) as surfactant in one-step seed-mediated growth. Transmission electron microscopy (TEM) characterization showed that the as-prepared Au nanopuncheons possessed 24 high index facets of {2 5 0}, {3 0 1}, and 2 {0 1 0} planes. Due to the high density of atomic steps and kinks in the structure, the Au nanopuncheons exhibited high surface enhanced Raman scattering (SERS) activity toward Rhodamine 6G.
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