Few-wall carbon nanotube coils

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dc.creatorDekel Nakar
dc.creatorStephanie Reich
dc.creatorErnesto Joselevich
dc.creatorLeonardo Dantas Machado
dc.creatorRonit Popovitz-Biro
dc.creatorKatya Rechav
dc.creatorEliezer Fernando de Oliveira
dc.creatorPatryk Kusch
dc.creatorAdo Jorio de Vasconcelos
dc.creatorDouglas Soares Galvão
dc.date.accessioned2022-10-25T13:17:24Z
dc.date.accessioned2025-09-09T00:19:13Z
dc.date.available2022-10-25T13:17:24Z
dc.date.issued2019-12-23
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.identifier.doihttps://doi.org/10.1021/acs.nanolett.9b03977
dc.identifier.issn15306992
dc.identifier.urihttps://hdl.handle.net/1843/46566
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofNano Letters
dc.rightsAcesso Restrito
dc.subjectNanotubos de carbono
dc.subjectNanotubos de carbono de paredes múltiplas
dc.subjectTransmission electron microscopes
dc.subjectEspectroscopia de Raman
dc.subject.otherCarbon nanotubes
dc.subject.otherMultiwall carbon nanotubes
dc.subject.otherCoil
dc.subject.otherTransmission electron microscope
dc.subject.otherRaman
dc.titleFew-wall carbon nanotube coils
dc.typeArtigo de periódico
local.citation.epage962
local.citation.issue2
local.citation.spage953
local.citation.volume20
local.description.resumoWhile various electronic components based on carbon nanotubes (CNTs) have already been demonstrated, the realization of miniature electromagnetic coils based on CNTs remains a challenge. Coils made of single-wall CNTs with accessible ends for contacting have been recently demonstrated but were found unsuitable to act as electromagnetic coils because of electrical shorting between their turns. Coils made of a few-wall CNT could in principle allow an insulated flow of current and thus be potential candidates for realizing CNT-based electromagnetic coils. However, no such CNT structure has been produced so far. Here, we demonstrate the formation of few-wall CNT coils and characterize their structural, optical, vibrational, and electrical properties using experimental and computational tools. The coils are made of CNTs with 2, 3, or 4 walls. They have accessible ends for electrical contacts and low defect densities. The coil diameters are on the order of one micron, like those of single-wall CNT coils, despite the higher rigidity of few-wall CNTs. Coils with as many as163 turns were found, with their turns organized in a rippled raft configuration. These coils are promising candidates for a variety of miniature devices based on electromagnetic coils, such as electromagnets, inductors, transformers, and motors. Being chirally and enantiomerically pure few-wall CNT bundles, they are also ideal for fundamental studies of interwall coupling and superconductivity in CNTs.
local.identifier.orcidhttps://orcid.org/0000-0003-3814-7115
local.identifier.orcidhttps://orcid.org/0000-0002-2391-0256
local.identifier.orcidhttps://orcid.org/0000-0002-9919-0734
local.identifier.orcidhttps://orcid.org/0000-0003-1221-4228
local.identifier.orcidhttps://orcid.org/0000-0002-7161-8217
local.identifier.orcidhttps://orcid.org/0000-0002-5978-2735
local.identifier.orcidhttps://orcid.org/0000-0003-0145-8358
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/10.1021/acs.nanolett.9b03977

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