Kelly, Anna T.Filgueira, Carly S.Schipper, Desmond E.Halas, Naomi J.Whitmire, Kenton H.2017-05-232017-05-232017Kelly, Anna T., Filgueira, Carly S., Schipper, Desmond E., et al.. "Gold coated iron phosphide core–shell structures." <i>RSC Advances,</i> 7, (2017) Royal Society of Chemistry: 25848-25854. https://doi.org/10.1039/C7RA01195D.https://hdl.handle.net/1911/94359Core–shell particles Fe2P@Au have been prepared beginning with Fe2P nanorods, nanocrosses and nanobundles prepared from the solvothermal decomposition of H2Fe3(CO)9(μ3-PtBu). Iron phosphide structures can be produced from a single-source organometallic precursor with morphological control by varying the surfactant conditions to yield fiber bundles and dumbbell-shaped bundles ranging from nanometers to microns. Derivatization of the surfaces with γ-aminobutyric acid was used to attach Au nanoparticle seeds to the surface of the Fe2P nanoparticles followed by completion of the Au shell by reduction with formaldehyde or aqueous HAuCl4/CO, with the latter giving somewhat better results. Shell thickness ranged from an incomplete, partially coated Au shell to a thickness of 65 ± 21 nm by varying the amount of gold decorated precursor particles. Increasing the thicknesses of the Au shells produced a redshift in the plasmonic resonance of the resulting structures as was observed previously for FeOx@Au.engThis Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported LicenceJournal articlehttps://doi.org/10.1039/C7RA01195D