| 1. Identificação | ||||
| Tipo de Referência | Artigo em Evento (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3KMHLSL | |||
| Repositório | sid.inpe.br/mtc-m21b/2015/12.01.18.12 | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2015/12.01.18.12.08 | |||
| Última Atualização dos Metadados | 2018:06.04.02.55.55 (UTC) administrator | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | MoellerOCSIMMLGC:2015:AuZiDe | |||
| Título | Au-nanoparticle zize dependent fermi energy in catalyst growth InAs nanowires  | |||
| Ano | 2015 | |||
| Data de Acesso | 24 jun. 2024 | |||
| Tipo Secundário | PRE CI | |||
| 2. Contextualização | ||||
| Autor | 1 Moeller, Michael 2 Oliveira, Douglas Soares 3 Cotta, Monica A. 4 Sahoo, Prasana K. 5 Iikawa, Fernando 6 Motisuke, Paulo 7 Molina, Alejandro 8 Lima, Maurício M. de 9 Garcia-Cristobal, Alberto 10 Cantarero, Andres | |||
| Grupo | 1 2 3 4 5 6 LAS-CTE-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 Universidade Estadual de Campinas (UNICAMP) 2 Universidade Estadual de Campinas (UNICAMP) 3 Universidade Estadual de Campinas (UNICAMP) 4 Universidade Estadual de Campinas (UNICAMP) 5 Universidade Estadual de Campinas (UNICAMP) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 University of Luxembourg 8 Universitat de Valencia 9 Universitat de Valencia 10 Universitat de Valencia | |||
| Endereço de e-Mail do Autor | 1 2 3 4 5 6 motisuke@las.inpe.br | |||
| Nome do Evento | Materials Research Society: Fall Meeting | |||
| Localização do Evento | Boston, MA | |||
| Data | 29 Nov. - 04 Dec. | |||
| Histórico (UTC) | 2015-12-01 18:12:08 :: simone -> administrator :: 2018-06-04 02:55:55 :: administrator -> simone :: 2015 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Resumo | Semiconductor nanowires (NWs) are very promising in future applications and already have been included in several optoelectronic devices such as lasers, solar cells, LEDs and sensors. A remarkable property of InAs NWs, as well as other arsenide and phosphide III-V semiconductor compounds, is the growth of the hexagonal wurtzite (WZ) crystal phase, while the most stable phase in bulk is the zincblende (ZB) one. Concerning the optical properties, the WZ phase presents several absorption peaks as compared to the cubic phase counterpart, due to the valence band splitting as well as the folding of the conduction band due to the Brillouin zone reduction. In this context, even though the InAs WZ structure has been extensively investigated, the results of its optical properties remain a matter of controversy, as in the case of the bandgap energy due to the strong effects of the surface on the optical spectra. In this contribution, InAs and InAs/InP core/shell nanowires grown by vapor-liquid-solid method are investigated by photoluminescence spectroscopy. Two set of samples are grown using different Au-nanoparticle sizes (5 and 20 nm), in Chemical beam epitaxy system. One of them is capped with InP shell and other one is pure InAs. All NWs are predominantly in wurtzite phase. We observe that capping InAs nanowires with an InP shell enhances the optical emission without affecting the Fermi energy which is above the conduction band edge. In contrast, the Fermi energy is reduced by ~20 meV when the Au-nanoparticle size increases from 5 to 20 nm. This is attributed to the differences in residual carbon incorporation into the catalyst-growth axial and the non-catalyst-growth radial layers. These results are corroborated using a self-consistent method to calculate the Fermi energy variation when the diameter of Au-nanoparticle increases. This effect can be useful to control the optical emission for device applications. | |||
| Área | FISMAT | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Au-nanoparticle zize dependent... | |||
| Conteúdo da Pasta doc | não têm arquivos | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Grupo de Usuários | simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | allow from all | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | urlib.net/www/2011/03.29.20.55 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ESR3H2 | |||
| Lista de Itens Citando | ||||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||