@article{217a87c7864f4ddaa8630c8e3e5770f2,
title = "Aluminum Nanocubes Have Sharp Corners",
abstract = "Of the many plasmonic nanoparticle geometries that have been synthesized, nanocubes have been of particular interest for creating nanocavities, facilitating plasmon coupling, and enhancing phenomena dependent upon local electromagnetic fields. Here we report the straightforward colloidal synthesis of single-crystalline {100} terminated Al nanocubes by decomposing AlH3 with Tebbe's reagent in tetrahydrofuran. The size and shape of the Al nanocubes is controlled by the reaction time and the ratio of AlH3 to Tebbe's reagent, which, together with reaction temperature, establish kinetic control over Al nanocube growth. Al nanocubes possess strong localized field enhancements at their sharp corners and resonances highly amenable to coupling with metallic substrates. Their native oxide surface renders them extremely air stable. Chemically synthesized Al nanocubes provide an earth-abundant alternative to noble metal nanocubes for plasmonics and nanophotonics applications.",
keywords = "field-enhancement, nanotechnology, plasmonics, shape control, {100} faceted",
author = "Clark, {Benjamin D.} and Jacobson, {Christian R.} and Minhan Lou and David Renard and Gang Wu and Luca Bursi and Ali, {Arzeena S.} and Swearer, {Dayne F.} and Tsai, {Ah Lim} and Peter Nordlander and Halas, {Naomi J.}",
note = "Funding Information: This research was financially supported by the Army Research Office (MURI W911NF-12-1 0407), the Air Force Office of Scientific Research Multidisciplinary Research Program of the University Research Initiative (MURI FA9550-15-1-0022), the Defense Threat Reduction Agency (HDTRA1-16-1-0042), the National Institute of Health (NS094535, A.-L.T.) and the Welch Foundation under grant C-1220 (N.J.H.) and C-1222 (P.N.) C.R.J and D.R. were supported by the Department of Defense (DoD) through the National Defense Science and Engineering Graduate Fellowship (NDSEG) Program. D.F.S. acknowledges the National Science Foundation for a Graduate Research Fellowship under grant no. 1450681. L.B. thanks the Center for Research Computing at Rice University for providing computer resources for the (time-dependent) density functional theory-based simulations Funding Information: This research was financially supported by the Army Research Office (MURI W911NF-12-1 0407), the Air Force Office of Scientific Research Multidisciplinary Research Program of the University Research Initiative (MURI FA9550-15-1-0022), the Defense Threat Reduction Agency (HDTRA1-16-1-0042), the National Institute of Health (NS094535, A.-L.T.), and the Welch Foundation under grant C-1220 (N.J.H.) and C-1222 (P.N.) C.R.J and D.R. were supported by the Department of Defense (DoD) through the National Defense Science and Engineering Graduate Fellowship (NDSEG) Program. D.F.S. acknowledges the National Science Foundation for a Graduate Research Fellowship under grant no. 1450681. L.B. thanks the Center for Research Computing at Rice University for providing computer resources for the (time-dependent) density functional theory-based simulations. Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",
year = "2019",
month = aug,
day = "27",
doi = "10.1021/acsnano.9b05277",
language = "English (US)",
volume = "13",
pages = "9682--9691",
journal = "ACS nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "8",
}