Controlling nanowire growth by light
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Publication Date
2015-10-26Journal Title
Nano Letters
ISSN
1530-6984
Publisher
American Chemical Society
Volume
15
Pages
7452-7457
Language
English
Type
Article
Metadata
Show full item recordCitation
di, M. G., Michaelis, F., Salmon, A., Hofmann, S., & Baumberg, J. (2015). Controlling nanowire growth by light. Nano Letters, 15 7452-7457. https://doi.org/10.1021/acs.nanolett.5b02953
Abstract
Individual Au catalyst nanoparticles are used for selective laser-induced chemical vapor deposition of single germanium nanowires. Dark-field scattering reveals in real time the optical signatures of all key constituent growth processes. Growth is initially triggered by plasmonic absorption in the Au catalyst, while once nucleated the growing Ge nanowire supports magnetic and electric resonances that then dominate the laser interactions. This spectroscopic understanding allows real-time laser feedback that is crucial toward realizing the full potential of controlling nanomaterial growth by light.
Keywords
Catalysis, laser-induced chemical vapor deposition, germanium nanowires, plasmonics, dark field spectroscopy, magnetic resonances
Sponsorship
We acknowledge financial support from EPSRC Grant EP/G060649/1, EP/L027151/1, EP/G037221/1, EPSRC NanoDTC, and ERC Grant LINASS 320503. S.H. acknowledges funding from ERC Grant InsituNANO 279342.
Funder references
EPSRC (EP/G060649/1)
EPSRC (EP/L027151/1)
European Research Council (320503)
EPSRC (EP/K028510/1)
European Research Council (279342)
EPSRC (EP/G037221/1)
Identifiers
External DOI: https://doi.org/10.1021/acs.nanolett.5b02953
This record's URL: https://www.repository.cam.ac.uk/handle/1810/252462
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