Publicação
Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses
| Resumo: | Noble metal powders containing gold and silver have been used for many centuries, providing different colours in the windows of the medieval cathedrals and in ancient Roman glasses. Nowadays, the interest in nanocomposite materials containing noble nanoparticles embedded in dielectric matrices is related with their potential use for a wide range of advanced technological applications. They have been proposed for environmental and biological sensing, tailoring colour of functional coatings, or for surface enhanced Raman spectroscopy. Most of these applications rely on the so-called localised surface plasmon resonance absorption, which is governed by the type of the noble metal nanoparticles, their distribution, size and shape and as well as of the dielectric characteristics of the host matrix. The aim of this work is to study the influence of the composition and thermal annealing on the morphological and structural changes of thin films composed of Ag metal clusters embedded in a dielectric TiO2 matrix. Since changes in size, shape and distribution of the clusters are fundamental parameters for tailoring the properties of plasmonic materials, a set of films with different Ag concentrations was prepared. The optical properties and the thermal behaviour of the films were correlated with the structural and morphological changes promoted by annealing. The films were deposited by DC magnetron sputtering and in order to promote the clustering of the Ag nanoparticles the as-deposited samples were subjected to an in-air annealing protocol. It was demonstrated that the clustering of metallic Ag affects the optical response spectrum and the thermal behaviour of the films. |
|---|---|
| Autores principais: | Borges, Joel Nuno Pinto |
| Outros Autores: | Rodrigues, M.S.; Lopes, Cláudia Jesus Ribeiro; Costa, D.; Couto, F. M.; Kubart, T.; Martins, B.; Duarte, N.; Dias, J. P.; Cavaleiro, A.; Polcar, T.; Macedo, Francisco; Vaz, F. |
| Assunto: | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439496605204480 |
|---|---|
| author | Borges, Joel Nuno Pinto |
| author2 | Rodrigues, M.S. Lopes, Cláudia Jesus Ribeiro Costa, D. Couto, F. M. Kubart, T. Martins, B. Duarte, N. Dias, J. P. Cavaleiro, A. Polcar, T. Macedo, Francisco Vaz, F. |
| author2_role | author author author author author author author author author author author author |
| author_facet | Borges, Joel Nuno Pinto Rodrigues, M.S. Lopes, Cláudia Jesus Ribeiro Costa, D. Couto, F. M. Kubart, T. Martins, B. Duarte, N. Dias, J. P. Cavaleiro, A. Polcar, T. Macedo, Francisco Vaz, F. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Borges, Joel Nuno Pinto\"},{\"Person.name\":\"Rodrigues, M.S.\"},{\"Person.name\":\"Lopes, Cláudia Jesus Ribeiro\"},{\"Person.name\":\"Costa, D.\"},{\"Person.name\":\"Couto, F. M.\"},{\"Person.name\":\"Kubart, T.\"},{\"Person.name\":\"Martins, B.\"},{\"Person.name\":\"Duarte, N.\"},{\"Person.name\":\"Dias, J. P.\"},{\"Person.name\":\"Cavaleiro, A.\"},{\"Person.name\":\"Polcar, T.\"},{\"Person.name\":\"Macedo, Francisco\"},{\"Person.name\":\"Vaz, F.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Borges, Joel Nuno Pinto Rodrigues, M.S. Lopes, Cláudia Jesus Ribeiro Costa, D. Couto, F. M. Kubart, T. Martins, B. Duarte, N. Dias, J. P. Cavaleiro, A. Polcar, T. Macedo, Francisco Vaz, F. |
| datacite.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| datacite.titles.title.fl_str_mv | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Borges, Joel Nuno Pinto Rodrigues, M.S. Lopes, Cláudia Jesus Ribeiro Costa, D. Couto, F. M. Kubart, T. Martins, B. Duarte, N. Dias, J. P. Cavaleiro, A. Polcar, T. Macedo, Francisco Vaz, F. |
| dc.date.Accepted.fl_str_mv | 2015-01-01T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/39818 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| dc.title.fl_str_mv | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Noble metal powders containing gold and silver have been used for many centuries, providing different colours in the windows of the medieval cathedrals and in ancient Roman glasses. Nowadays, the interest in nanocomposite materials containing noble nanoparticles embedded in dielectric matrices is related with their potential use for a wide range of advanced technological applications. They have been proposed for environmental and biological sensing, tailoring colour of functional coatings, or for surface enhanced Raman spectroscopy. Most of these applications rely on the so-called localised surface plasmon resonance absorption, which is governed by the type of the noble metal nanoparticles, their distribution, size and shape and as well as of the dielectric characteristics of the host matrix. The aim of this work is to study the influence of the composition and thermal annealing on the morphological and structural changes of thin films composed of Ag metal clusters embedded in a dielectric TiO2 matrix. Since changes in size, shape and distribution of the clusters are fundamental parameters for tailoring the properties of plasmonic materials, a set of films with different Ag concentrations was prepared. The optical properties and the thermal behaviour of the films were correlated with the structural and morphological changes promoted by annealing. The films were deposited by DC magnetron sputtering and in order to promote the clustering of the Ag nanoparticles the as-deposited samples were subjected to an in-air annealing protocol. It was demonstrated that the clustering of metallic Ag affects the optical response spectrum and the thermal behaviour of the films. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/31fb5b62-ee49-4285-8c8e-9348f743a884/download |
| id | rum_dd37ddcc4f353e3e419ecb93ae1dc5fa |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/39818 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/39818 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Borges, Joel Nuno Pinto Rodrigues, M.S. Lopes, Cláudia Jesus Ribeiro Costa, D. Couto, F. M. Kubart, T. Martins, B. Duarte, N. Dias, J. P. Cavaleiro, A. Polcar, T. Macedo, Francisco Vaz, F. |
| publishDate | 2015 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engElsevierporNoble metal powders containing gold and silver have been used for many centuries, providing different colours in the windows of the medieval cathedrals and in ancient Roman glasses. Nowadays, the interest in nanocomposite materials containing noble nanoparticles embedded in dielectric matrices is related with their potential use for a wide range of advanced technological applications. They have been proposed for environmental and biological sensing, tailoring colour of functional coatings, or for surface enhanced Raman spectroscopy. Most of these applications rely on the so-called localised surface plasmon resonance absorption, which is governed by the type of the noble metal nanoparticles, their distribution, size and shape and as well as of the dielectric characteristics of the host matrix. The aim of this work is to study the influence of the composition and thermal annealing on the morphological and structural changes of thin films composed of Ag metal clusters embedded in a dielectric TiO2 matrix. Since changes in size, shape and distribution of the clusters are fundamental parameters for tailoring the properties of plasmonic materials, a set of films with different Ag concentrations was prepared. The optical properties and the thermal behaviour of the films were correlated with the structural and morphological changes promoted by annealing. The films were deposited by DC magnetron sputtering and in order to promote the clustering of the Ag nanoparticles the as-deposited samples were subjected to an in-air annealing protocol. It was demonstrated that the clustering of metallic Ag affects the optical response spectrum and the thermal behaviour of the films.application/pdfporThin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responsesBorges, Joel Nuno PintoRodrigues, M.S.Lopes, Cláudia Jesus RibeiroCosta, D.Couto, F. M.Kubart, T.Martins, B.Duarte, N.Dias, J. P.Cavaleiro, A.Polcar, T.Macedo, FranciscoVaz, F.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptCITATIONBorges, J., Rodrigues, M. S., Lopes, C., Costa, D., Couto, F. M., Kubart, T., . . . Vaz, F. (2015). Thin films composed of Ag nanoclusters dispersed in TiO<inf>2</inf>: Influence of composition and thermal annealing on the microstructure and physical responses. Applied Surface Science. doi: 10.1016/j.apsusc.2015.08.148ISSNIsPartOf0169-4332DOIIsPartOf10.1016/j.apsusc.2015.08.14820152015-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/39818http://purl.org/coar/access_right/c_abf2open accessThin filmsAg clusters dispersed in TiO2Localised surface plasmon resonanceThermal behaviourThermal behaviourahttp://www.oecd.org/science/inno/38235147.pdfFields of Science and Technology (FOS)Ciências Naturais::Ciências Físicas1107679 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/31fb5b62-ee49-4285-8c8e-9348f743a884/download |
| spellingShingle | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses Borges, Joel Nuno Pinto Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| status | SINGLETON |
| subject.fl_str_mv | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura |
| subject.other.fl_str_mv | Ciências Naturais::Ciências Físicas |
| title | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| title_full | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| title_fullStr | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| title_full_unstemmed | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| title_short | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| title_sort | Thin films composed of Ag nanoclusters dispersed in TiO2: Influence of composition and thermal annealing on the microstructure and physical responses |
| topic | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| topic_facet | Thin films Ag clusters dispersed in TiO2 Localised surface plasmon resonance Thermal behaviour Thermal behavioura Ciências Naturais::Ciências Físicas |
| url | https://hdl.handle.net/1822/39818 |
| visible | 1 |