4.7 Article

The spontaneous formation and plasmonic properties of ultrathin gold-silver nanorods and nanowires stabilized in oleic acid

Journal

CHEMICAL COMMUNICATIONS
Volume 51, Issue 93, Pages 16691-16694

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc05542c

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Funding

  1. D.G.I.(MEC)/FEDER [CTQ2013-48635-C2-2-P]
  2. EC
  3. Region Midi Pyrenees [EFA 17/08]
  4. Comunidad Autonoma de La Rioja (CAR)

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Ultrathin Au-Ag alloy nanorods and nanowires of different lengths and ca. 1.9 nm diameter are prepared through a low-temperature decomposition of the precursor [Au2Ag2(C6F5)(4)(OEt2)(2)](n) in oleic acid. This nanostructure formation has been studied through TEM, HRTEM, EDS, HS-SPME-GC-MS and F-19 NMR spectroscopy. The UNRs and UNWs display a length-dependent broad band in the mid-IR region that is related to the longitudinal mode of the surface plasmon resonance of the ultrathin nanostructures.

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