Sublattice asymmetry of impurity doping in graphene: A review
In this review we highlight recent theoretical and experimental work on sublattice asymmetric doping of impurities in graphene, with a focus on substitutional nitrogen dopants. It is well known that one current limitation of graphene in regards to its use in electronics is that in its ordinary state...
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2014-08-01
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| Series: | Beilstein Journal of Nanotechnology |
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| Online Access: | https://doi.org/10.3762/bjnano.5.133 |
| _version_ | 1818438892953534464 |
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| author | James A. Lawlor Mauro S. Ferreira |
| author_facet | James A. Lawlor Mauro S. Ferreira |
| author_sort | James A. Lawlor |
| collection | DOAJ |
| description | In this review we highlight recent theoretical and experimental work on sublattice asymmetric doping of impurities in graphene, with a focus on substitutional nitrogen dopants. It is well known that one current limitation of graphene in regards to its use in electronics is that in its ordinary state it exhibits no band gap. By doping one of its two sublattices preferentially it is possible to not only open such a gap, which can furthermore be tuned through control of the dopant concentration, but in theory produce quasi-ballistic transport of electrons in the undoped sublattice, both important qualities for any graphene device to be used competetively in future technology. We outline current experimental techniques for synthesis of such graphene monolayers and detail theoretical efforts to explain the mechanisms responsible for the effect, before suggesting future research directions in this nascent field. |
| first_indexed | 2024-12-14T17:47:48Z |
| format | Article |
| id | doaj.art-4f26340b584e459e8f217495e17eddbd |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-14T17:47:48Z |
| publishDate | 2014-08-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-4f26340b584e459e8f217495e17eddbd2022-12-21T22:52:43ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862014-08-01511210121710.3762/bjnano.5.1332190-4286-5-133Sublattice asymmetry of impurity doping in graphene: A reviewJames A. Lawlor0Mauro S. Ferreira1School of Physics, Trinity College Dublin, Dublin 2, IrelandSchool of Physics, Trinity College Dublin, Dublin 2, IrelandIn this review we highlight recent theoretical and experimental work on sublattice asymmetric doping of impurities in graphene, with a focus on substitutional nitrogen dopants. It is well known that one current limitation of graphene in regards to its use in electronics is that in its ordinary state it exhibits no band gap. By doping one of its two sublattices preferentially it is possible to not only open such a gap, which can furthermore be tuned through control of the dopant concentration, but in theory produce quasi-ballistic transport of electrons in the undoped sublattice, both important qualities for any graphene device to be used competetively in future technology. We outline current experimental techniques for synthesis of such graphene monolayers and detail theoretical efforts to explain the mechanisms responsible for the effect, before suggesting future research directions in this nascent field.https://doi.org/10.3762/bjnano.5.133band gapelectronic transportgraphenenitrogen dopingsublattice asymmetry |
| spellingShingle | James A. Lawlor Mauro S. Ferreira Sublattice asymmetry of impurity doping in graphene: A review Beilstein Journal of Nanotechnology band gap electronic transport graphene nitrogen doping sublattice asymmetry |
| title | Sublattice asymmetry of impurity doping in graphene: A review |
| title_full | Sublattice asymmetry of impurity doping in graphene: A review |
| title_fullStr | Sublattice asymmetry of impurity doping in graphene: A review |
| title_full_unstemmed | Sublattice asymmetry of impurity doping in graphene: A review |
| title_short | Sublattice asymmetry of impurity doping in graphene: A review |
| title_sort | sublattice asymmetry of impurity doping in graphene a review |
| topic | band gap electronic transport graphene nitrogen doping sublattice asymmetry |
| url | https://doi.org/10.3762/bjnano.5.133 |
| work_keys_str_mv | AT jamesalawlor sublatticeasymmetryofimpuritydopingingrapheneareview AT maurosferreira sublatticeasymmetryofimpuritydopingingrapheneareview |