Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFBA |
Texto Completo: | http://repositorio.ufba.br/ri/handle/ri/16471 |
Resumo: | p. 1-8 |
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Santos, Renato B. dosRivelino, RobertoMota, F. de BritoGueorguiev, G. K.2014-10-27T22:12:05Z2014-10-27T22:12:05Z20111550-235Xhttp://repositorio.ufba.br/ri/handle/ri/16471v. 84p. 1-8Carbon nanostructures consisting of corannulene/coronene-like pieces connected by atomic chains and doped with nitrogen atoms have been addressed by carrying out first-principles calculations within the framework of the spin-polarized density functional theory. Our results show that the conformation, charge distributions, and spin states are significantly influenced by the nitrogen incorporation in comparison to these characteristics of similar pure carbon structures. Higher concentration of incorporated nitrogen leads to a smaller highest occupied molecular orbital–lowest unoccupied molecular orbital (HOMO-LUMO) gap and different conductive states near the Fermi level. In turn the different location of the N-incorporation sites allows switching on and off of the π-electron magnetism in these systems. We found that the rotational deformation of the terminations with respect to the carbon chain depends on the number and the location of the incorporated N atoms. The most stable N-doped structures exhibit a relative rotation of the terminations of approximately 90 degrees. These findings indicate that by controllable N doping one can tune the conducting channel of carbon chains connected to sp2 terminations; thus obtaining low band-gap nano-units.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-04-15T13:33:51Z No. of bitstreams: 1 Renato B. dos Santos.pdf: 982477 bytes, checksum: e44ce019f1cbccd570e57e99d93f2291 (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-10-27T22:12:05Z (GMT) No. of bitstreams: 1 Renato B. dos Santos.pdf: 982477 bytes, checksum: e44ce019f1cbccd570e57e99d93f2291 (MD5)Made available in DSpace on 2014-10-27T22:12:05Z (GMT). No. of bitstreams: 1 Renato B. dos Santos.pdf: 982477 bytes, checksum: e44ce019f1cbccd570e57e99d93f2291 (MD5) Previous issue date: 2011http://dx.doi.org/ 10.1103/PhysRevB.84.075417reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAEffects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles studyPhysical Review Binfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALRenato B. dos Santos.pdfRenato B. dos Santos.pdfapplication/pdf982477https://repositorio.ufba.br/bitstream/ri/16471/1/Renato%20B.%20dos%20Santos.pdfe44ce019f1cbccd570e57e99d93f2291MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/16471/2/license.txt0d4b811ef71182510d2015daa7c8a900MD52TEXTRenato B. dos Santos.pdf.txtRenato B. dos Santos.pdf.txtExtracted texttext/plain38580https://repositorio.ufba.br/bitstream/ri/16471/3/Renato%20B.%20dos%20Santos.pdf.txt6f2527b8b1dd447923e46223f0fde7dcMD53ri/164712022-03-23 20:18:53.671oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-03-23T23:18:53Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
dc.title.pt_BR.fl_str_mv |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
dc.title.alternative.pt_BR.fl_str_mv |
Physical Review B |
title |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
spellingShingle |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study Santos, Renato B. dos |
title_short |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
title_full |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
title_fullStr |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
title_full_unstemmed |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
title_sort |
Effects of N doping on the electronic properties of a small carbon atomic chain with distinct sp2 terminations: A first-principles study |
author |
Santos, Renato B. dos |
author_facet |
Santos, Renato B. dos Rivelino, Roberto Mota, F. de Brito Gueorguiev, G. K. |
author_role |
author |
author2 |
Rivelino, Roberto Mota, F. de Brito Gueorguiev, G. K. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Santos, Renato B. dos Rivelino, Roberto Mota, F. de Brito Gueorguiev, G. K. |
description |
p. 1-8 |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2014-10-27T22:12:05Z |
dc.date.available.fl_str_mv |
2014-10-27T22:12:05Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
status_str |
publishedVersion |
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http://repositorio.ufba.br/ri/handle/ri/16471 |
dc.identifier.issn.none.fl_str_mv |
1550-235X |
dc.identifier.number.pt_BR.fl_str_mv |
v. 84 |
identifier_str_mv |
1550-235X v. 84 |
url |
http://repositorio.ufba.br/ri/handle/ri/16471 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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openAccess |
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Brasil |
dc.source.pt_BR.fl_str_mv |
http://dx.doi.org/ 10.1103/PhysRevB.84.075417 |
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reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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