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Metadados

1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3MHFETP
Repositóriosid.inpe.br/mtc-m21b/2016/10.03.19.11
Última Atualização2017:01.16.15.31.30 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21b/2016/10.03.19.11.03
Última Atualização dos Metadados2021:03.04.02.31.11 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoPenaPPSBOFRA:2016:ExInPh
TítuloExperimental investigation of photoconductivity in n-type PbTe quantum wells
Ano2016
Data de Acesso14 maio 2024
Tipo SecundárioPRE CN
Número de Arquivos1
Tamanho3380 KiB
2. Contextualização
Autor1 Pena, Fernando Silva
2 Pirralho, Marília Páscoa
3 Peres, Marcelos Lima
4 Soares, Demetrio Werner
5 Braga, Paula Oliveira
6 Okasaki, Anderson Kenji
7 Fornari, Celso Israel
8 Rappl, Paulo Henrique de Oliveira
9 Abramof, Eduardo
Identificador de Curriculo1
2
3
4
5
6
7
8 8JMKD3MGP5W/3C9JJ37
9 8JMKD3MGP5W/3C9JGUH
Grupo1
2
3
4
5
6 CMS-ETES-SPG-INPE-MCTI-GOV-BR
7 CMS-ETES-SPG-INPE-MCTI-GOV-BR
8 LAS-CTE-INPE-MCTI-GOV-BR
9 LAS-CTE-INPE-MCTI-GOV-BR
Afiliação1 Universidade Federal de Itajubá (UNIFEI)
2 Universidade Federal de Itajubá (UNIFEI)
3 Universidade Federal de Itajubá (UNIFEI)
4 Universidade Federal de Itajubá (UNIFEI)
5 Universidade Federal de Itajubá (UNIFEI)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
7 Instituto Nacional de Pesquisas Espaciais (INPE)
8 Instituto Nacional de Pesquisas Espaciais (INPE)
9 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1
2
3
4
5
6 anderson.okazaki@inpe.br
7 celso.fornari@inpe.br
8 rappl@las.inpe.br
9 eduardo.abramof@inpe.br
Nome do EventoBrazilian MRS Meeting, 15
Localização do EventoCampinas, SP
Data25-29 Sept.
Tipo TerciárioPoster
Histórico (UTC)2016-10-03 19:11:03 :: simone -> administrator ::
2017-01-09 13:59:32 :: administrator -> simone :: 2016
2017-01-16 15:32:35 :: simone -> administrator :: 2016
2021-03-04 02:31:11 :: administrator -> simone :: 2016
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoPbTe is a narrow gap semiconductor which exhibits interesting properties that differentiate it from othersemiconductors [1].PbTe based materials have being widely used in the fabrication of infrared devices [2] and its electrical properties are well investigated in literature. Concerning to photoconductivity effect, very few information have being reported in structures base in this compound. In this work, we present photoconductivity measurements performed in n-type PbTe quantum wells (QW) under infrared (IR) illumination and the results presented anomalous behavior at different temperature regions. Remarkably, the increasing of photoresponse reached 80 times the value measured under dark conditions at 150K, for example.For temperatures below 250K, the effect of persistent photoconductivity was also observed. In addition, a metal-insulator transition is observed in the system as the temperature crosses the value of 200K, approximately, indicating that there is transference of electrons from the barriers into the QW.The PbTe/Pb1-xEuxTe QWs samples investigated in this work weregrown by molecular beam epitaxy on (111) cleaved BaF2substrates. The sample structure consisted of a 2 to 3 µmthick Pb1-xEuxTe buffer layer grown on top of the (111)BaF2 substrate followed by a PbTe well embedded betweentwo Pb1-xEuxTe barriers doped with bismuth, which guarantee an n-type character for these samples.The width of the QWs are 14nm and 10nm. From the decay curves of the photoconductivity measurements, it is possible to detect the presence of defect levels inside the QWs. In order to obtain a detailed description of the transport properties of the systems, Hall measurements were performed under light and dark conditions. After a systematic analysis, we expect to obtain a general description of the photoconductivity effect observed in these QWs. The information obtained from this investigation can be useful for the development or improvement of devices based on PbTe compound.
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3MHFETP
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3MHFETP
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Grupo de Usuáriosself-uploading-INPE-MCTI-GOV-BR
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Grupo de Leitoresadministrator
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Visibilidadeshown
Permissão de Leituraallow from all
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
VinculaçãoTrabalho não Vinculado à Tese/Dissertação
Repositório Espelhourlib.net/www/2011/03.29.20.55
Unidades Imediatamente Superiores8JMKD3MGPCW/3ESR3H2
8JMKD3MGPCW/3F358GL
Lista de Itens Citandosid.inpe.br/mtc-m21/2012/07.13.14.57.50 4
sid.inpe.br/mtc-m21/2012/07.13.14.44.57 1
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile type url versiontype volume
7. Controle da descrição
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