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. 2015 Apr 8;15(4):2751-5.
doi: 10.1021/acs.nanolett.5b00614. Epub 2015 Mar 25.

Aluminum nanocrystals

Michael J McClain, Andrea E Schlather, Emilie Ringe, Nicholas S King, Lifei Liu, Alejandro Manjavacas, Mark W Knight, Ish Kumar, Kenton H Whitmire, Henry O Everitt, Peter Nordlander, Naomi J Halas
Free article

Aluminum nanocrystals

Michael J McClain et al. Nano Lett. .
Free article

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.

Keywords: Plasmon; UV; aluminum; nanocrystal; synthesis.

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