Fuel-free nanocap-like motors actuated under visible light

The motion of nanomotors triggered by light sources will provide new alternative routes to power nanoarchitectures without the need of chemical fuels. However, most light-driven nanomotors are triggered by UV-light, near infrared reflection, or laser sources. It is demonstrated that nanocap shaped A...

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Autores: Wang, Xu, Srdihar, Varum, Guo, Surong, Talebi, Nahid, Miguel López, Albert, Hahn, Kersten, van Aken, Peter A., Sánchez Ordóñez, Samuel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/123486
Acceso en línea:https://hdl.handle.net/2445/123486
Access Level:acceso abierto
Palabra clave:Nanotecnologia
Espectroscòpia d'electrons
Nanotechnology
Electron spectroscopy
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spelling Fuel-free nanocap-like motors actuated under visible lightWang, XuSrdihar, VarumGuo, SurongTalebi, NahidMiguel López, AlbertHahn, Kerstenvan Aken, Peter A.Sánchez Ordóñez, SamuelNanotecnologiaEspectroscòpia d'electronsNanotechnologyElectron spectroscopyThe motion of nanomotors triggered by light sources will provide new alternative routes to power nanoarchitectures without the need of chemical fuels. However, most light-driven nanomotors are triggered by UV-light, near infrared reflection, or laser sources. It is demonstrated that nanocap shaped Au/TiO2 nanomotors (175 nm in diameter) display increased Brownian motion in the presence of broad spectrum visible light. The motion results from the surface plasmon resonance effect leading to self-electrophoresis between the Au and TiO2 layers, a mechanism called plasmonic photocatalytic effect in the field of photocatalysis. This mechanism is experimentally characterized by electron energy loss spectroscopy, energy-filtered transmission electron microscopy, and optical video tracking. This mechanism is also studied in a more theoretical manner using numerical finite-difference time-domain simulations. The ability to power nanomaterials with visible light may result in entirely new applications for externally powered micro/nanomotors.Wiley201820192018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion17 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/123486Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC))reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: http://dx.doi.org/10.1002/adfm.201705862Advanced Functional Materials, 2018, vol. 28, num. 25, p. 1705862http://dx.doi.org/10.1002/adfm.201705862info:eu-repo/grantAgreement/EC/FP7/311529info:eu-repo/grantAgreement/EC/FP7/222639(c) Wiley, 2018info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1234862026-05-29T05:05:01Z
dc.title.none.fl_str_mv Fuel-free nanocap-like motors actuated under visible light
title Fuel-free nanocap-like motors actuated under visible light
spellingShingle Fuel-free nanocap-like motors actuated under visible light
Wang, Xu
Nanotecnologia
Espectroscòpia d'electrons
Nanotechnology
Electron spectroscopy
title_short Fuel-free nanocap-like motors actuated under visible light
title_full Fuel-free nanocap-like motors actuated under visible light
title_fullStr Fuel-free nanocap-like motors actuated under visible light
title_full_unstemmed Fuel-free nanocap-like motors actuated under visible light
title_sort Fuel-free nanocap-like motors actuated under visible light
dc.creator.none.fl_str_mv Wang, Xu
Srdihar, Varum
Guo, Surong
Talebi, Nahid
Miguel López, Albert
Hahn, Kersten
van Aken, Peter A.
Sánchez Ordóñez, Samuel
author Wang, Xu
author_facet Wang, Xu
Srdihar, Varum
Guo, Surong
Talebi, Nahid
Miguel López, Albert
Hahn, Kersten
van Aken, Peter A.
Sánchez Ordóñez, Samuel
author_role author
author2 Srdihar, Varum
Guo, Surong
Talebi, Nahid
Miguel López, Albert
Hahn, Kersten
van Aken, Peter A.
Sánchez Ordóñez, Samuel
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Nanotecnologia
Espectroscòpia d'electrons
Nanotechnology
Electron spectroscopy
topic Nanotecnologia
Espectroscòpia d'electrons
Nanotechnology
Electron spectroscopy
description The motion of nanomotors triggered by light sources will provide new alternative routes to power nanoarchitectures without the need of chemical fuels. However, most light-driven nanomotors are triggered by UV-light, near infrared reflection, or laser sources. It is demonstrated that nanocap shaped Au/TiO2 nanomotors (175 nm in diameter) display increased Brownian motion in the presence of broad spectrum visible light. The motion results from the surface plasmon resonance effect leading to self-electrophoresis between the Au and TiO2 layers, a mechanism called plasmonic photocatalytic effect in the field of photocatalysis. This mechanism is experimentally characterized by electron energy loss spectroscopy, energy-filtered transmission electron microscopy, and optical video tracking. This mechanism is also studied in a more theoretical manner using numerical finite-difference time-domain simulations. The ability to power nanomaterials with visible light may result in entirely new applications for externally powered micro/nanomotors.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/123486
url https://hdl.handle.net/2445/123486
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1002/adfm.201705862
Advanced Functional Materials, 2018, vol. 28, num. 25, p. 1705862
http://dx.doi.org/10.1002/adfm.201705862
info:eu-repo/grantAgreement/EC/FP7/311529
info:eu-repo/grantAgreement/EC/FP7/222639
dc.rights.none.fl_str_mv (c) Wiley, 2018
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Wiley, 2018
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 17 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC))
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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