Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals

Autores
Benavente Llorente, Victoria; Dzhagan, Volodymyr M.; Gaponik, Nikolai; Iglesias, Rodrigo Alejandro; Zahn, Dietrich R. T.; Lesnyak, Vladimir
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, we developed a method to study in situ the optical properties of Cu2-xSe and CuS nanocrystals upon electrochemical reduction and oxidation. Both these materials possess a strong localized surface plasmon resonance (LSPR) in the near-infrared region. First, the nanoparticles were embedded into a transparent film made of a perfluorinated sulfonic-acid copolymer Nafion deposited onto an ITO-coated glass. This substrate was employed as a working electrode for chronoamperometry and cyclic voltammetry measurements directly in a transparent cell allowing for simultaneous acquisition of absorption spectra of the system upon its charging/discharging. We observed that LSPR of the Cu2-xSe NCs can be well-controlled and tuned in a wide range simply by potentiostatic potential switching. Starting with an intensive plasmon of the initial as-synthesized Cu2-xSe NCs we were able to completely damp it via reduction (electron injection). Moreover, this electrochemical tuning was demonstrated to be reversible by subsequent oxidation (extracting electrons from the system). At the same time, CuS NCs did not exhibit such prominent LSPR modulation upon the same experimental conditions due to their more metallic-like electronic structure. Hence, our findings demonstrate for the first time a reversible tuning of the LSPR of copper chalcogenide NCs without any chemical or structural modification. Such a wide LSPR tunability is of paramount importance, for example in applications of these materials in photovoltaics to amplify light absorption, in systems involving plasmon-exciton interactions to controllably quench/enhance light emission, and in electrochromic devices to control their transmittance.
Fil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Technische Universität Dresden; Alemania
Fil: Dzhagan, Volodymyr M.. Technische Universität Chemnitz; Alemania
Fil: Gaponik, Nikolai. Technische Universität Dresden; Alemania
Fil: Iglesias, Rodrigo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Zahn, Dietrich R. T.. Technische Universität Chemnitz; Alemania
Fil: Lesnyak, Vladimir. Technische Universität Dresden; Alemania
Materia
Optoelectrochemical Tuning
Nir Localized Surface Plasmon Resonance
Cu2-Xse Nanocrystals
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63994
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63994
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide NanocrystalsBenavente Llorente, VictoriaDzhagan, Volodymyr M.Gaponik, NikolaiIglesias, Rodrigo AlejandroZahn, Dietrich R. T.Lesnyak, VladimirOptoelectrochemical TuningNir Localized Surface Plasmon ResonanceCu2-Xse Nanocrystalshttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2In this work, we developed a method to study in situ the optical properties of Cu2-xSe and CuS nanocrystals upon electrochemical reduction and oxidation. Both these materials possess a strong localized surface plasmon resonance (LSPR) in the near-infrared region. First, the nanoparticles were embedded into a transparent film made of a perfluorinated sulfonic-acid copolymer Nafion deposited onto an ITO-coated glass. This substrate was employed as a working electrode for chronoamperometry and cyclic voltammetry measurements directly in a transparent cell allowing for simultaneous acquisition of absorption spectra of the system upon its charging/discharging. We observed that LSPR of the Cu2-xSe NCs can be well-controlled and tuned in a wide range simply by potentiostatic potential switching. Starting with an intensive plasmon of the initial as-synthesized Cu2-xSe NCs we were able to completely damp it via reduction (electron injection). Moreover, this electrochemical tuning was demonstrated to be reversible by subsequent oxidation (extracting electrons from the system). At the same time, CuS NCs did not exhibit such prominent LSPR modulation upon the same experimental conditions due to their more metallic-like electronic structure. Hence, our findings demonstrate for the first time a reversible tuning of the LSPR of copper chalcogenide NCs without any chemical or structural modification. Such a wide LSPR tunability is of paramount importance, for example in applications of these materials in photovoltaics to amplify light absorption, in systems involving plasmon-exciton interactions to controllably quench/enhance light emission, and in electrochromic devices to control their transmittance.Fil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Technische Universität Dresden; AlemaniaFil: Dzhagan, Volodymyr M.. Technische Universität Chemnitz; AlemaniaFil: Gaponik, Nikolai. Technische Universität Dresden; AlemaniaFil: Iglesias, Rodrigo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Zahn, Dietrich R. T.. Technische Universität Chemnitz; AlemaniaFil: Lesnyak, Vladimir. Technische Universität Dresden; AlemaniaAmerican Chemical Society2017-07-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63994Benavente Llorente, Victoria; Dzhagan, Volodymyr M.; Gaponik, Nikolai; Iglesias, Rodrigo Alejandro; Zahn, Dietrich R. T.; et al.; Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals; American Chemical Society; Journal of Physical Chemistry C; 121; 33; 24-7-2017; 18244-182531932-74471932-7455CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.7b05334info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:58Zoai:ri.conicet.gov.ar:11336/63994instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:21:58.526CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
title Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
spellingShingle Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
Benavente Llorente, Victoria
Optoelectrochemical Tuning
Nir Localized Surface Plasmon Resonance
Cu2-Xse Nanocrystals
title_short Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
title_full Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
title_fullStr Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
title_full_unstemmed Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
title_sort Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals
dc.creator.none.fl_str_mv Benavente Llorente, Victoria
Dzhagan, Volodymyr M.
Gaponik, Nikolai
Iglesias, Rodrigo Alejandro
Zahn, Dietrich R. T.
Lesnyak, Vladimir
author Benavente Llorente, Victoria
author_facet Benavente Llorente, Victoria
Dzhagan, Volodymyr M.
Gaponik, Nikolai
Iglesias, Rodrigo Alejandro
Zahn, Dietrich R. T.
Lesnyak, Vladimir
author_role author
author2 Dzhagan, Volodymyr M.
Gaponik, Nikolai
Iglesias, Rodrigo Alejandro
Zahn, Dietrich R. T.
Lesnyak, Vladimir
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Optoelectrochemical Tuning
Nir Localized Surface Plasmon Resonance
Cu2-Xse Nanocrystals
topic Optoelectrochemical Tuning
Nir Localized Surface Plasmon Resonance
Cu2-Xse Nanocrystals
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In this work, we developed a method to study in situ the optical properties of Cu2-xSe and CuS nanocrystals upon electrochemical reduction and oxidation. Both these materials possess a strong localized surface plasmon resonance (LSPR) in the near-infrared region. First, the nanoparticles were embedded into a transparent film made of a perfluorinated sulfonic-acid copolymer Nafion deposited onto an ITO-coated glass. This substrate was employed as a working electrode for chronoamperometry and cyclic voltammetry measurements directly in a transparent cell allowing for simultaneous acquisition of absorption spectra of the system upon its charging/discharging. We observed that LSPR of the Cu2-xSe NCs can be well-controlled and tuned in a wide range simply by potentiostatic potential switching. Starting with an intensive plasmon of the initial as-synthesized Cu2-xSe NCs we were able to completely damp it via reduction (electron injection). Moreover, this electrochemical tuning was demonstrated to be reversible by subsequent oxidation (extracting electrons from the system). At the same time, CuS NCs did not exhibit such prominent LSPR modulation upon the same experimental conditions due to their more metallic-like electronic structure. Hence, our findings demonstrate for the first time a reversible tuning of the LSPR of copper chalcogenide NCs without any chemical or structural modification. Such a wide LSPR tunability is of paramount importance, for example in applications of these materials in photovoltaics to amplify light absorption, in systems involving plasmon-exciton interactions to controllably quench/enhance light emission, and in electrochromic devices to control their transmittance.
Fil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Technische Universität Dresden; Alemania
Fil: Dzhagan, Volodymyr M.. Technische Universität Chemnitz; Alemania
Fil: Gaponik, Nikolai. Technische Universität Dresden; Alemania
Fil: Iglesias, Rodrigo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Zahn, Dietrich R. T.. Technische Universität Chemnitz; Alemania
Fil: Lesnyak, Vladimir. Technische Universität Dresden; Alemania
description In this work, we developed a method to study in situ the optical properties of Cu2-xSe and CuS nanocrystals upon electrochemical reduction and oxidation. Both these materials possess a strong localized surface plasmon resonance (LSPR) in the near-infrared region. First, the nanoparticles were embedded into a transparent film made of a perfluorinated sulfonic-acid copolymer Nafion deposited onto an ITO-coated glass. This substrate was employed as a working electrode for chronoamperometry and cyclic voltammetry measurements directly in a transparent cell allowing for simultaneous acquisition of absorption spectra of the system upon its charging/discharging. We observed that LSPR of the Cu2-xSe NCs can be well-controlled and tuned in a wide range simply by potentiostatic potential switching. Starting with an intensive plasmon of the initial as-synthesized Cu2-xSe NCs we were able to completely damp it via reduction (electron injection). Moreover, this electrochemical tuning was demonstrated to be reversible by subsequent oxidation (extracting electrons from the system). At the same time, CuS NCs did not exhibit such prominent LSPR modulation upon the same experimental conditions due to their more metallic-like electronic structure. Hence, our findings demonstrate for the first time a reversible tuning of the LSPR of copper chalcogenide NCs without any chemical or structural modification. Such a wide LSPR tunability is of paramount importance, for example in applications of these materials in photovoltaics to amplify light absorption, in systems involving plasmon-exciton interactions to controllably quench/enhance light emission, and in electrochromic devices to control their transmittance.
publishDate 2017
dc.date.none.fl_str_mv 2017-07-24
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/63994
Benavente Llorente, Victoria; Dzhagan, Volodymyr M.; Gaponik, Nikolai; Iglesias, Rodrigo Alejandro; Zahn, Dietrich R. T.; et al.; Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals; American Chemical Society; Journal of Physical Chemistry C; 121; 33; 24-7-2017; 18244-18253
1932-7447
1932-7455
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63994
identifier_str_mv Benavente Llorente, Victoria; Dzhagan, Volodymyr M.; Gaponik, Nikolai; Iglesias, Rodrigo Alejandro; Zahn, Dietrich R. T.; et al.; Electrochemical Tuning of Localized Surface Plasmon Resonance in Copper Chalcogenide Nanocrystals; American Chemical Society; Journal of Physical Chemistry C; 121; 33; 24-7-2017; 18244-18253
1932-7447
1932-7455
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.7b05334
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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