Controlling Nanowire Growth by Light.
Change log
Authors
Martino, G Di
Michaelis, FB
Salmon, AR
Hofmann, Stephan https://orcid.org/0000-0001-6375-1459
Baumberg, JJ
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.
Description
Keywords
Catalysis, dark field spectroscopy, germanium nanowires, laser-induced chemical vapor deposition, magnetic resonances, plasmonics
Journal Title
Nano Lett
Conference Name
Journal ISSN
1530-6984
1530-6992
1530-6992
Volume Title
15
Publisher
American Chemical Society (ACS)
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/G060649/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/K028510/1)
European Research Council (279342)
Engineering and Physical Sciences Research Council (EP/G037221/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
European Research Council (320503)
Engineering and Physical Sciences Research Council (EP/K028510/1)
European Research Council (279342)
Engineering and Physical Sciences Research Council (EP/G037221/1)
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.