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Department of Chemistry College of Liberal Arts and Sciences

Nanomaterial Synthesis

Shape-Controlled Synthesis of Metal Nanomaterials

Line graph of optical extinction (arbitrary units) versus wavelength from 400 to 1100 nanometers. Multiple colored curves (solid and dashed) represent different nanoparticle samples. All curves show a prominent peak near ~520–550 nm. Additional peaks shift to longer wavelengths depending on particle shape: mid-range peaks around ~650–750 nm and broader peaks extending into the near-infrared (~800–1100 nm). Three inset images at the top illustrate the particle shapes corresponding to the curves: clustered spheres (left), elongated rods (center), and a triangular plate (right). The figure shows that particle geometry affects the position and width of extinction peaks, with more elongated or anisotropic shapes producing red-shifted (longer-wavelength) responses.
DuChene, J.S. et al., Chem. Mater. 2013, 25, 1392-1399
Vials of Au nanomaterials showcasing the different color that is tunable through morphology. The colors shown from left to right are yellow, red, orange, magenta, and green.
DuChene, J.S. et al., Dalton Trans. 2012, 41, 7879-7882
Transmission Electron Microscopy (TEM) images (a-c) and Scanning Electron Microscopy (SEM) images (d-f) of Gold (Au) nanostructures of various morphologies, including: (a) triangular nanoprisms, (b) nanorods, (c) hexagonal nanoplates, (d) nanocubes, (e) triangular bow tie nanoarray and (f) nanorod assemblies.
Transmission Electron Microscopy (TEM) images (a-c) and Scanning Electron Microscopy (SEM) images (d-f) of Gold (Au) nanostructures of various morphologies.

Metal Oxides

Scanning electron microscope (SEM) images of TiO2 truncated cube, ZnO nanoplatelet and Cu2O nanowires
DuChene, J.S. et al., Adv. Energy. Mater. 2016, 6, 1501250

Plasmonic Heterostructures

Electron microscopy images of Au/TiO2, Au/ZnO and Au/NiO heterostructures

Elemental Mapping

Scanning electron microscope image and nanoSIMS of truncated anatase bipyramids. Fluorine was found preferentially adsorbed on the 001 facet
Mulcahy, J.R. et al., Chem.Eur.J.2019, 25, 993-996