Gold nanoparticle growth monitored in situ using a novel fast optical single-particle spectroscopy method.

Becker, Jan; Schubert, Olaf; Sönnichsen, Carsten · Nano Lett · 2007

basic_science · Level V

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Abstract

Size- and shape-dependent optical properties of gold nanorods allow monitoring their growth using a novel fast single-particle spectroscopy (fastSPS) method. FastSPS uses a spatially addressable electronic shutter based on a liquid crystal device to investigate particles randomly deposited on a substrate, orders of magnitude faster than other techniques. We use fastSPS to observe nanoparticle growth in situ on a single-particle level and extract quantitative data on nanoparticle growth.

Medical subject headings