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Electrochemical crystallization of plasmonic nanostructures


Dahlin, A B; Sannomiya, T; Zahn, R; Sotiriou, G A; Vörös, J (2011). Electrochemical crystallization of plasmonic nanostructures. Nano Letters, 11(3):1337-1343.

Abstract

We show how gold recrystallizes when under the influence of electrochemical potentials. This "cold annealing" occurs without charge transfer reactions and preserves nanoscale structural features. By performing the process on plasmonic nanostructures, grain growth is monitored noninvasively by optical spectroscopy. In this way, the influence from crystal structure on plasmon resonances can be investigated independently. Observed spectral changes are in excellent agreement with analytical models and changes in electron relaxation time and plasma frequency are calculated.

Abstract

We show how gold recrystallizes when under the influence of electrochemical potentials. This "cold annealing" occurs without charge transfer reactions and preserves nanoscale structural features. By performing the process on plasmonic nanostructures, grain growth is monitored noninvasively by optical spectroscopy. In this way, the influence from crystal structure on plasmon resonances can be investigated independently. Observed spectral changes are in excellent agreement with analytical models and changes in electron relaxation time and plasma frequency are calculated.

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30 citations in Web of Science®
32 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Biomedical Engineering
Dewey Decimal Classification:170 Ethics
610 Medicine & health
Language:English
Date:2011
Deposited On:04 Jan 2012 13:51
Last Modified:07 Dec 2017 10:58
Publisher:American Chemical Society
ISSN:1530-6984
Publisher DOI:https://doi.org/10.1021/nl104424q
PubMed ID:21275409

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