| 1. Identificação | ||||
| Tipo de Referência | Resumo em Evento (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3PGF4RE | |||
| Repositório | sid.inpe.br/mtc-m21b/2017/08.25.17.08 (acesso restrito) | |||
| Última Atualização | 2017:10.03.11.56.44 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/08.25.17.08.24 | |||
| Última Atualização dos Metadados | 2018:06.04.02.27.45 (UTC) administrator | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | PirralhoPeSoOkFoRaAb:2017:TrNePo | |||
| Título | Transition from negative to positive photoconductivity in p-type Pb1-xEuxTe films  | |||
| Ano | 2017 | |||
| Data de Acesso | 11 maio 2024 | |||
| Tipo Secundário | PRE CN | |||
| Número de Arquivos | 1 | |||
| Tamanho | 1035 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Pirralho, Marília de J. P. 2 Peres, Marcelo L. 3 Soares, Demétrio A. W. 4 Okasaki, Anderson K. 5 Fornari, Celso Israel 6 Rappl, Paulo Henrique de Oliveira 7 Abramof, Eduardo | |||
| Identificador de Curriculo | 1 2 3 4 5 6 8JMKD3MGP5W/3C9JJ37 7 8JMKD3MGP5W/3C9JGUH | |||
| Grupo | 1 2 3 4 5 CMS-ETES-SESPG-INPE-MCTIC-GOV-BR 6 LABAS-COCTE-INPE-MCTIC-GOV-BR | |||
| Afiliação | 1 2 3 4 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 2 3 4 5 celso.fornari@inpe.br 6 paulo.rappl@inpe.br 7 eduardo.abramof@inpe.br | |||
| Nome do Evento | Brazilian Workshop on Semiconductor Physics, 18 (BWSP) | |||
| Localização do Evento | Maresias, SP | |||
| Data | 14-18 ago. | |||
| Título do Livro | Resumos | |||
| Histórico (UTC) | 2017-08-25 17:08:49 :: simone -> administrator :: 2017 2017-09-18 04:40:57 :: administrator -> simone :: 2017 2017-10-03 11:56:44 :: simone -> administrator :: 2017 2018-01-09 11:47:05 :: administrator -> simone :: 2017 2018-01-09 18:26:59 :: simone -> administrator :: 2017 2018-06-04 02:27:45 :: administrator -> simone :: 2017 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Resumo | The phenomenon of photoconductivity has been used as an important tool to investigate the presence of additional states within the band structure of semiconductors [1] and has provided basic knowledge that allowed the development of photodetector and sensor devices along the last decades [2]. We investigated the photoconductivity effect in p-type Pb1-xEuxTe films for x=0.01, 0.02, 0.03, 0.05 and 0.06 at T=300K. The measurements revealed a clear transition from negative to positive photoconductivity as the Eu content x is increased at room temperature. This transition is related to the metal-insulator transition that occurs due to the disorder originated from the introduction of Eu atoms and it is an Anderson transition. Our investigation found that, from the potential application point of view, the sample x=0.06 is more suitable, i.e. it presents an almost noise free signal and the higher photoconductivity amplitude response observed. The photoconductive for the sample with x=0.06 was further investigated in the temperature range of 77 300K and, surprisingly, multiple additional transitions were observed with amplitudes that reached around 200 times the original value before illumination. We show that this anomalous behavior is a consequence of the generation and recombination rates between the bands and the 4f level and a defect level located inside the bandgap. The main goal of this work is to make a prospective study of NPC effect in p-type Pb1-xEuxTe films in both sides of the metal-insulator transition aiming to possible new applications in the development of photonic devices that operate from low temperature up to room temperature. Acknowledgments: The authors would like to acknowledge CAPES and FAPEMIG for support. References: [1] M. M. Furchi et al, Nano Letters 14, 6165-6170 (2014); [2] R. Jaramillo et al, Jour. Appl. Phys. 119, 035101 (2016). | |||
| Área | FISMAT | |||
| Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Transition from negative... | |||
| Arranjo 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CMS > Transition from negative... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Vinculação | 8JMKD3MGP3W34P/3NAEMRH | |||
| Repositório Espelho | sid.inpe.br/mtc-m21b/2013/09.26.14.25.22 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ESR3H2 8JMKD3MGPCW/3F358GL | |||
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.57.50 3 sid.inpe.br/mtc-m21/2012/07.13.14.44.57 2 | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist 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 tertiarytype type url volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||