1. Repositório Institucional da UFMG
  2. Publicações Científicas e Culturais
  3. Artigo de Periódico
Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/46608
Full metadata record
DC FieldValueLanguage
dc.creatorBruno Santos de Oliveirapt_BR
dc.creatorBraulio Soares Archanjopt_BR
dc.creatorRogerio Valaskipt_BR
dc.creatorCarlos Alberto Achetept_BR
dc.creatorLuiz Gustavo de Oliveira Lopes Cançadopt_BR
dc.creatorAdo Jorio de Vasconcelospt_BR
dc.creatorThiago de Lourenço e Vasconcelospt_BR
dc.date.accessioned2022-10-25T19:16:47Z-
dc.date.available2022-10-25T19:16:47Z-
dc.date.issued2020-09-17-
dc.citation.volume153pt_BR
dc.citation.issue11pt_BR
dc.citation.spage114201-1pt_BR
dc.citation.epage114201-8pt_BR
dc.identifier.doihttps://doi.org/10.1063/5.0021560pt_BR
dc.identifier.issn10897690pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/46608-
dc.description.resumoPlasmon-tunable tip pyramids (PTTPs) are reproducible and efficient nanoantennas for tip-enhanced Raman spectroscopy (TERS). Their fabrication method is based on template stripping of a segmented gold pyramid with a size-adjustable nanopyramid end, which is capable of supporting monopole localized surface plasmon resonance (LSPR) modes leading to high spectral enhancement when its resonance energy is matched with the excitation laser energy. Here, we describe in detail the PTTP fabrication method and report a statistical analysis based on 530 PTTPs’ and 185 ordinary gold micropyramids’ templates. Our results indicate that the PTTP method generates probes with an apex diameter smaller than 30 nm on 92.4% of the batch, which is a parameter directly related to the achievable TERS spatial resolution. Moreover, the PTTPs’ nanopyramid edge size L, a critical parameter for LSPR spectral tuning, shows variability typically smaller than 12.5%. The PTTP’s performance was tested in TERS experiments performed on graphene, and the results show a spectral enhancement of up to 72-fold, which is at least one order of magnitude higher than that typically achieved with gold micropyramids. Imaging resolution is in the order of 20 nm.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_BR
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofThe Journal of Chemical Physicspt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectTERSpt_BR
dc.subjectNanoantennaspt_BR
dc.subject.otherNanotecnologiapt_BR
dc.subject.otherEspectroscopia de Ramanpt_BR
dc.titleNanofabrication of plasmon-tunable nanoantennas for tip-enhanced Raman spectroscopypt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://aip.scitation.org/doi/10.1063/5.0021560pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5201-0791pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-8145-7712pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0816-0888pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5978-2735pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0195-444Xpt_BR
Appears in Collections:Artigo de Periódico

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.