Porosity-moderated ultrafast electron transport in Au nanowire networks
Porosity-moderated ultrafast electron transport in Au nanowire networks
We demonstrate for first time the ultrafast properties of a newly formed porous Au nanostructure. The properties of the porous nanostructure are compared with those of a solid gold film using time-resolved optical spectroscopy.
The experiments suggest that under the same excitation conditions the relaxation dynamics are slower in the former. Our observations are evaluated by simulations based on a phenomenological rate equation model. The impeded dynamics has been attributed to the porous nature of the structure in the networks, which results in reduced efficiency during the dissipation of the laser-deposited energy. Importantly,the porosity of the complex three-dimensional nanostructure is introduced as a geometrical control parameter of its ultrafast electron transport.
711-717
Magoulakis, Evaggelos
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Kostopoulou, Athanasia
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Arvanitakis, G.N.
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Andriotis, Antonis
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Lappas, Alexandros
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Kanaras, Antonios G.
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Loukakos, Panagiotis
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June 2013
Magoulakis, Evaggelos
7a94984d-82c4-487a-a070-097fe732970f
Kostopoulou, Athanasia
c11bf962-efe9-45cf-955c-8b21d1d8d547
Arvanitakis, G.N.
50f5790b-8047-4968-8abc-76bec1c1a027
Andriotis, Antonis
ed3a30b0-d98d-415e-a082-6f0d43a8e703
Lappas, Alexandros
3e727545-5524-4bb7-a240-1c1aef2ce62d
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7
Loukakos, Panagiotis
9c77f344-2da3-4adb-9b73-cb8bac9a1f3c
Magoulakis, Evaggelos, Kostopoulou, Athanasia, Arvanitakis, G.N., Andriotis, Antonis, Lappas, Alexandros, Kanaras, Antonios G. and Loukakos, Panagiotis
(2013)
Porosity-moderated ultrafast electron transport in Au nanowire networks.
Applied Physics A, 111 (3), .
(doi:10.1007/s00339-013-7647-x).
Abstract
We demonstrate for first time the ultrafast properties of a newly formed porous Au nanostructure. The properties of the porous nanostructure are compared with those of a solid gold film using time-resolved optical spectroscopy.
The experiments suggest that under the same excitation conditions the relaxation dynamics are slower in the former. Our observations are evaluated by simulations based on a phenomenological rate equation model. The impeded dynamics has been attributed to the porous nature of the structure in the networks, which results in reduced efficiency during the dissipation of the laser-deposited energy. Importantly,the porosity of the complex three-dimensional nanostructure is introduced as a geometrical control parameter of its ultrafast electron transport.
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e-pub ahead of print date: 27 March 2013
Published date: June 2013
Organisations:
Quantum, Light & Matter Group
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Local EPrints ID: 358651
URI: http://eprints.soton.ac.uk/id/eprint/358651
ISSN: 0947-8396
PURE UUID: afd928ac-4353-4fad-ba0c-61e9bc725bc9
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Date deposited: 10 Oct 2013 16:26
Last modified: 15 Mar 2024 03:29
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Contributors
Author:
Evaggelos Magoulakis
Author:
Athanasia Kostopoulou
Author:
G.N. Arvanitakis
Author:
Antonis Andriotis
Author:
Alexandros Lappas
Author:
Panagiotis Loukakos
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