Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFMG |
| Texto Completo: | https://doi.org/10.1007/s12274-021-3288-0 http://hdl.handle.net/1843/56027 https://orcid.org/0000-0003-4779-3549 https://orcid.org/0000-0002-8551-5948 https://orcid.org/0000-0003-3445-0408 https://orcid.org/0000-0001-8983-8413 https://orcid.org/0000-0003-0356-607X https://orcid.org/0000-0002-4166-2487 https://orcid.org/0000-0002-4169-8869 https://orcid.org/0000-0002-9066-4008 https://orcid.org/0000-0002-9534-2702 |
Resumo: | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico |
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2023-07-10T18:12:24Z2023-07-10T18:12:24Z202114827972804https://doi.org/10.1007/s12274-021-3288-019980000http://hdl.handle.net/1843/56027https://orcid.org/0000-0003-4779-3549https://orcid.org/0000-0002-8551-5948https://orcid.org/0000-0003-3445-0408https://orcid.org/0000-0001-8983-8413https://orcid.org/0000-0003-0356-607Xhttps://orcid.org/0000-0002-4166-2487https://orcid.org/0000-0002-4169-8869https://orcid.org/0000-0002-9066-4008https://orcid.org/0000-0002-9534-2702CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)FAPERJ - Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de JaneiroVan der Waals heterostructures obtained by artificially stacking two-dimensional crystals represent the frontier of material engineering, demonstrating properties superior to those of the starting materials. Fine control of the interlayer twist angle has opened new possibilities for tailoring the optoelectronic properties of these heterostructures. Twisted bilayer graphene with a strong interlayer coupling is a prototype of twisted heterostructure inheriting the intriguing electronic properties of graphene. Understanding the effects of the twist angle on its out-of-equilibrium optical properties is crucial for devising optoelectronic applications. With this aim, we here combine excitation-resolved hot photoluminescence with femtosecond transient absorption microscopy. The hot charge carrier distribution induced by photo-excitation results in peaked absorption bleaching and photo-induced absorption bands, both with pronounced twist angle dependence. Theoretical simulations of the electronic band structure and of the joint density of states enable to assign these bands to the blocking of interband transitions at the van Hove singularities and to photo-activated intersubband transitions. The tens of picoseconds relaxation dynamics of the observed bands is attributed to the angle-dependence of electron and phonon heat capacities of twisted bilayer graphene.engUniversidade Federal de Minas GeraisUFMGBrasilICX - DEPARTAMENTO DE FÍSICANano ResearchGrafenoMicroscopiaFotoluminescênciaEspectroscopia ópticaTwisted bilayer grapheneTransient absorption microscopyHot-photoluminescenceVan der Waals heterostructuresOptoelectronic propertiesVan Hove singularitiesAngle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer grapheneinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://link.springer.com/article/10.1007/s12274-021-3288-0#citeasEva Arianna Aurelia PognaAna Maria de PaulaXianchong MiaoDriele Von DreifusThonimar Vieira de Alencar SouzaMarcus Vinicius de Oliveira MoutinhoPedro Paulo de Mello VenezuelaCristian ManzoniMinbiao JiGiulio Cerulloapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/56027/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALAngle-tunable intersubband photoabsorption and enhanced.pdfAngle-tunable intersubband photoabsorption and enhanced.pdfapplication/pdf655973https://repositorio.ufmg.br/bitstream/1843/56027/2/Angle-tunable%20intersubband%20photoabsorption%20and%20enhanced.pdf0a71448f5d5594a31ca304c44f5a8b92MD521843/560272023-07-10 17:16:00.512oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-07-10T20:16Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
| dc.title.pt_BR.fl_str_mv |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| title |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| spellingShingle |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene Eva Arianna Aurelia Pogna Twisted bilayer graphene Transient absorption microscopy Hot-photoluminescence Van der Waals heterostructures Optoelectronic properties Van Hove singularities Grafeno Microscopia Fotoluminescência Espectroscopia óptica |
| title_short |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| title_full |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| title_fullStr |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| title_full_unstemmed |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| title_sort |
Angle-tunable intersubband photoabsorption and enhanced photobleaching in twisted bilayer graphene |
| author |
Eva Arianna Aurelia Pogna |
| author_facet |
Eva Arianna Aurelia Pogna Ana Maria de Paula Xianchong Miao Driele Von Dreifus Thonimar Vieira de Alencar Souza Marcus Vinicius de Oliveira Moutinho Pedro Paulo de Mello Venezuela Cristian Manzoni Minbiao Ji Giulio Cerullo |
| author_role |
author |
| author2 |
Ana Maria de Paula Xianchong Miao Driele Von Dreifus Thonimar Vieira de Alencar Souza Marcus Vinicius de Oliveira Moutinho Pedro Paulo de Mello Venezuela Cristian Manzoni Minbiao Ji Giulio Cerullo |
| author2_role |
author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Eva Arianna Aurelia Pogna Ana Maria de Paula Xianchong Miao Driele Von Dreifus Thonimar Vieira de Alencar Souza Marcus Vinicius de Oliveira Moutinho Pedro Paulo de Mello Venezuela Cristian Manzoni Minbiao Ji Giulio Cerullo |
| dc.subject.por.fl_str_mv |
Twisted bilayer graphene Transient absorption microscopy Hot-photoluminescence Van der Waals heterostructures Optoelectronic properties Van Hove singularities |
| topic |
Twisted bilayer graphene Transient absorption microscopy Hot-photoluminescence Van der Waals heterostructures Optoelectronic properties Van Hove singularities Grafeno Microscopia Fotoluminescência Espectroscopia óptica |
| dc.subject.other.pt_BR.fl_str_mv |
Grafeno Microscopia Fotoluminescência Espectroscopia óptica |
| description |
CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| publishDate |
2021 |
| dc.date.issued.fl_str_mv |
2021 |
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2023-07-10T18:12:24Z |
| dc.date.available.fl_str_mv |
2023-07-10T18:12:24Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/1843/56027 |
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https://doi.org/10.1007/s12274-021-3288-0 |
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19980000 |
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https://orcid.org/0000-0003-4779-3549 https://orcid.org/0000-0002-8551-5948 https://orcid.org/0000-0003-3445-0408 https://orcid.org/0000-0001-8983-8413 https://orcid.org/0000-0003-0356-607X https://orcid.org/0000-0002-4166-2487 https://orcid.org/0000-0002-4169-8869 https://orcid.org/0000-0002-9066-4008 https://orcid.org/0000-0002-9534-2702 |
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https://doi.org/10.1007/s12274-021-3288-0 http://hdl.handle.net/1843/56027 https://orcid.org/0000-0003-4779-3549 https://orcid.org/0000-0002-8551-5948 https://orcid.org/0000-0003-3445-0408 https://orcid.org/0000-0001-8983-8413 https://orcid.org/0000-0003-0356-607X https://orcid.org/0000-0002-4166-2487 https://orcid.org/0000-0002-4169-8869 https://orcid.org/0000-0002-9066-4008 https://orcid.org/0000-0002-9534-2702 |
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19980000 |
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eng |
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eng |
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Nano Research |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal de Minas Gerais |
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UFMG |
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Brasil |
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ICX - DEPARTAMENTO DE FÍSICA |
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Universidade Federal de Minas Gerais |
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reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
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