Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/20654 |
Resumo: | Currently, it is understood that the carrier recombination rate in semiconductors can be modified by metals due to pure electrodynamic interactions through surface plasmons. We propose here an electrostatic mechanism for carrier-metallic nanoparticle interaction comparable in effect to plasmonic interactions. Arising from Coulomb attraction of electrons and holes to their images in metal, this mechanism produces large carrier concentrations near metallic nanoparticles. Increased concentration results in increased quantum efficiency and enhances the rate of e-h recombination. This manifests as emission enhancement in InGaN quantum wells radiating in the near-UV region. The proposed fundamental mechanism provides a new perspective for improving the efficiency of broadband light emitters. |
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Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wellsEMISSIONSURFACEPHOTOLUMINESCENCENANOCAVITIESPLASMONICSCurrently, it is understood that the carrier recombination rate in semiconductors can be modified by metals due to pure electrodynamic interactions through surface plasmons. We propose here an electrostatic mechanism for carrier-metallic nanoparticle interaction comparable in effect to plasmonic interactions. Arising from Coulomb attraction of electrons and holes to their images in metal, this mechanism produces large carrier concentrations near metallic nanoparticles. Increased concentration results in increased quantum efficiency and enhances the rate of e-h recombination. This manifests as emission enhancement in InGaN quantum wells radiating in the near-UV region. The proposed fundamental mechanism provides a new perspective for improving the efficiency of broadband light emitters.AMER PHYSICAL SOC2017-12-07T19:54:48Z2013-01-01T00:00:00Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20654eng1098-012110.1103/PhysRevB.87.201304Llopis, A.Lin, J.Pereira, S. M. S.Trinidade, T.Martins, M. A.Watson, I. M.Krokhin, A. A.Neogi, A.info: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:RCAAP2024-02-22T11:40:38Zoai:ria.ua.pt:10773/20654Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:55:19.358076Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
title |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
spellingShingle |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells Llopis, A. EMISSION SURFACE PHOTOLUMINESCENCE NANOCAVITIES PLASMONICS |
title_short |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
title_full |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
title_fullStr |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
title_full_unstemmed |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
title_sort |
Electrostatic mechanism of strong enhancement of light emitted by semiconductor quantum wells |
author |
Llopis, A. |
author_facet |
Llopis, A. Lin, J. Pereira, S. M. S. Trinidade, T. Martins, M. A. Watson, I. M. Krokhin, A. A. Neogi, A. |
author_role |
author |
author2 |
Lin, J. Pereira, S. M. S. Trinidade, T. Martins, M. A. Watson, I. M. Krokhin, A. A. Neogi, A. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Llopis, A. Lin, J. Pereira, S. M. S. Trinidade, T. Martins, M. A. Watson, I. M. Krokhin, A. A. Neogi, A. |
dc.subject.por.fl_str_mv |
EMISSION SURFACE PHOTOLUMINESCENCE NANOCAVITIES PLASMONICS |
topic |
EMISSION SURFACE PHOTOLUMINESCENCE NANOCAVITIES PLASMONICS |
description |
Currently, it is understood that the carrier recombination rate in semiconductors can be modified by metals due to pure electrodynamic interactions through surface plasmons. We propose here an electrostatic mechanism for carrier-metallic nanoparticle interaction comparable in effect to plasmonic interactions. Arising from Coulomb attraction of electrons and holes to their images in metal, this mechanism produces large carrier concentrations near metallic nanoparticles. Increased concentration results in increased quantum efficiency and enhances the rate of e-h recombination. This manifests as emission enhancement in InGaN quantum wells radiating in the near-UV region. The proposed fundamental mechanism provides a new perspective for improving the efficiency of broadband light emitters. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01T00:00:00Z 2013 2017-12-07T19:54:48Z |
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/10773/20654 |
url |
http://hdl.handle.net/10773/20654 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1098-0121 10.1103/PhysRevB.87.201304 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
AMER PHYSICAL SOC |
publisher.none.fl_str_mv |
AMER PHYSICAL SOC |
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 instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137606710067200 |