Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications

Detalhes bibliográficos
Autor(a) principal: Bundaleska, Neli
Data de Publicação: 2020
Outros Autores: Dias, Ana M., Bundaleski, Nenad, Felizardo, E., Henriques, J., Tsyganov, D., Abrashev, Miroslav V., Valcheva, Evgenia P., Kissovski, J., Ferraria, A. M., do Rego, A. M. Botelho, Almeida, A., Zavašnik, Janez, Cvelbar, Uroš, Teodoro, Orlando M. N. D., Strunskus, Thomas, Tatarova, Elena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/117149
Resumo: PTDC/NAN-MAT/30565/2017 D01-284/2019 (INFRAMAT) IBB BASE 2020-2023 UID/FIS/00068/2019.
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spelling Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applicationsPTDC/NAN-MAT/30565/2017 D01-284/2019 (INFRAMAT) IBB BASE 2020-2023 UID/FIS/00068/2019.The ability to change the secondary electron emission properties of nitrogen-doped graphene (N-graphene) has been demonstrated. To this end, a novel microwave plasma-enabled scalable route for continuous and controllable fabrication of free-standing N-graphene sheets was developed. High-quality N-graphene with prescribed structural qualities was produced at a rate of 0.5 mg/min by tailoring the high energy density plasma environment. Up to 8% of nitrogen doping levels were achieved while keeping the oxygen content at residual amounts ( 1%). The synthesis is accomplished via a single step, at atmospheric conditions, using ethanol/methane and ammonia/methylamine as carbon and nitrogen precursors. The type and level of doping is affected by the position where the N-precursor is injected in the plasma environment and by the type of precursors used. Importantly, N atoms incorporated predominantly in pyridinic/pyrrolic functional groups alter the performance of the collective electronic oscillations, i.e. plasmons, of graphene. For the first time it has been demonstrated that the synergistic effect between the electronic structure changes and the reduction of graphene $-plasmons caused by N doping, along with the peculiar “crumpled” morphology, leads to sub-unitary (textless 1) secondary electron yields. N-graphene can be considered as a prospective low secondary electron emission and plasmonic material.DF – Departamento de FísicaCeFITec – Centro de Física e Investigação TecnológicaRUNBundaleska, NeliDias, Ana M.Bundaleski, NenadFelizardo, E.Henriques, J.Tsyganov, D.Abrashev, Miroslav V.Valcheva, Evgenia P.Kissovski, J.Ferraria, A. M.do Rego, A. M. BotelhoAlmeida, A.Zavašnik, JanezCvelbar, UrošTeodoro, Orlando M. N. D.Strunskus, ThomasTatarova, Elena2021-05-05T23:26:21Z2020-12-012020-12-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/117149eng2045-2322PURE: 27322023https://doi.org/10.1038/s41598-020-69844-9info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-10T16:00:17ZPortal AgregadorONG
dc.title.none.fl_str_mv Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
title Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
spellingShingle Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
Bundaleska, Neli
title_short Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
title_full Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
title_fullStr Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
title_full_unstemmed Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
title_sort Prospects for microwave plasma synthesized N-graphene in secondary electron emission mitigation applications
author Bundaleska, Neli
author_facet Bundaleska, Neli
Dias, Ana M.
Bundaleski, Nenad
Felizardo, E.
Henriques, J.
Tsyganov, D.
Abrashev, Miroslav V.
Valcheva, Evgenia P.
Kissovski, J.
Ferraria, A. M.
do Rego, A. M. Botelho
Almeida, A.
Zavašnik, Janez
Cvelbar, Uroš
Teodoro, Orlando M. N. D.
Strunskus, Thomas
Tatarova, Elena
author_role author
author2 Dias, Ana M.
Bundaleski, Nenad
Felizardo, E.
Henriques, J.
Tsyganov, D.
Abrashev, Miroslav V.
Valcheva, Evgenia P.
Kissovski, J.
Ferraria, A. M.
do Rego, A. M. Botelho
Almeida, A.
Zavašnik, Janez
Cvelbar, Uroš
Teodoro, Orlando M. N. D.
Strunskus, Thomas
Tatarova, Elena
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
CeFITec – Centro de Física e Investigação Tecnológica
RUN
dc.contributor.author.fl_str_mv Bundaleska, Neli
Dias, Ana M.
Bundaleski, Nenad
Felizardo, E.
Henriques, J.
Tsyganov, D.
Abrashev, Miroslav V.
Valcheva, Evgenia P.
Kissovski, J.
Ferraria, A. M.
do Rego, A. M. Botelho
Almeida, A.
Zavašnik, Janez
Cvelbar, Uroš
Teodoro, Orlando M. N. D.
Strunskus, Thomas
Tatarova, Elena
description PTDC/NAN-MAT/30565/2017 D01-284/2019 (INFRAMAT) IBB BASE 2020-2023 UID/FIS/00068/2019.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-01
2020-12-01T00:00:00Z
2021-05-05T23:26:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/117149
url http://hdl.handle.net/10362/117149
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2045-2322
PURE: 27322023
https://doi.org/10.1038/s41598-020-69844-9
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.mail.fl_str_mv
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