Aluminum Nanocrystals
Author
McClain, Michael J.
Schlather, Andrea E.
Ringe, Emilie
King, Nicholas S.
Liu, Lifei
Manjavacas, Alejandro
Knight, Mark W.
Kumar, Ish
Whitmire, Kenton
Everitt, Henry O.
Nordlander, Peter
Halas, Naomi J.
Date
2015Citation
Published Version
Abstract
We demonstrate the facile synthesis of high purity aluminum nanocrystals over a range of controlled sizes from 70 to 220 nm diameter with size control achieved through a simple modification of solvent ratios in the reaction solution. The monodisperse, icosahedral, and trigonal bipyramidal nanocrystals are air-stable for weeks, due to the formation of a 2-4 nm thick passivating oxide layer on their surfaces. We show that the nanocrystals support size-dependent ultraviolet and visible plasmon modes, providing a far more sustainable alternative to gold and silver nanoparticles currently in widespread use.
Keyword
plasmon; UV; aluminum; nanocrystal; synthesis
Type
Journal article
Citable link to this page
http://hdl.handle.net/1911/80754Metadata
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