Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing

Optical printing holds great potential to enable the use of the vast variety of colloidal nanoparticles (NPs) in nano- and microdevices and circuits. By means of optical forces, it enables the direct assembly of NPs, one by one, onto specific positions of solid surfaces with great flexibility of pat...

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Detalles Bibliográficos
Autores principales: Gargiulo, Julian, Brick, Thomas, Violi, Ianina L., Herrera, Facundo Carlos, Shibanuma, Toshihiko, Albella, Pablo, Requejo, Félix Gregorio, Cortés, Emiliano, Maier, Stefan A., Stefani, Fernando D.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Química
Plasmonics
Colloidal patterning
Graphene
Optical forces
Reduced graphene oxide
Thermo-osmosis
Thermophoresis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123552
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123552
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Plasmonics
Colloidal patterning
Graphene
Optical forces
Reduced graphene oxide
Thermo-osmosis
Thermophoresis
spellingShingle Química
Plasmonics
Colloidal patterning
Graphene
Optical forces
Reduced graphene oxide
Thermo-osmosis
Thermophoresis
Gargiulo, Julian
Brick, Thomas
Violi, Ianina L.
Herrera, Facundo Carlos
Shibanuma, Toshihiko
Albella, Pablo
Requejo, Félix Gregorio
Cortés, Emiliano
Maier, Stefan A.
Stefani, Fernando D.
Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
topic_facet Química
Plasmonics
Colloidal patterning
Graphene
Optical forces
Reduced graphene oxide
Thermo-osmosis
Thermophoresis
description Optical printing holds great potential to enable the use of the vast variety of colloidal nanoparticles (NPs) in nano- and microdevices and circuits. By means of optical forces, it enables the direct assembly of NPs, one by one, onto specific positions of solid surfaces with great flexibility of pattern design and no need of previous surface patterning. However, for unclear causes it was not possible to print identical NPs closer to each other than 300 nm. Here, we show that the repulsion restricting the optical printing of close by NPs arises from light absorption by the printed NPs and subsequent local heating. By optimizing heat dissipation, it is possible to reduce the minimum separation between NPs. Using a reduced graphene oxide layer on a sapphire substrate, we demonstrate for the first time the optical printing of Au-Au NP dimers. Modeling the experiments considering optical, thermophoretic, and thermo-osmotic forces we obtain a detailed understanding and a clear pathway for the optical printing fabrication of complex nano structures and circuits based on connected colloidal NPs.
format Articulo
Articulo
author Gargiulo, Julian
Brick, Thomas
Violi, Ianina L.
Herrera, Facundo Carlos
Shibanuma, Toshihiko
Albella, Pablo
Requejo, Félix Gregorio
Cortés, Emiliano
Maier, Stefan A.
Stefani, Fernando D.
author_facet Gargiulo, Julian
Brick, Thomas
Violi, Ianina L.
Herrera, Facundo Carlos
Shibanuma, Toshihiko
Albella, Pablo
Requejo, Félix Gregorio
Cortés, Emiliano
Maier, Stefan A.
Stefani, Fernando D.
author_sort Gargiulo, Julian
title Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
title_short Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
title_full Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
title_fullStr Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
title_full_unstemmed Understanding and reducing photothermal forces for the fabrication of Au nanoparticle dimers by optical printing
title_sort understanding and reducing photothermal forces for the fabrication of au nanoparticle dimers by optical printing
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/123552
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