Rectification ratio and direction controlled by temperature in copper phthalocyanine ensemble molecular diodes

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorSergi Lopes, Carolina-
Autor(es): dc.creatorMerces, Leandro-
Autor(es): dc.creatorde Oliveira, Rafael Furlan-
Autor(es): dc.creatorde Camargo, Davi Henrique Starnini-
Autor(es): dc.creatorBof Bufon, Carlos César-
Data de aceite: dc.date.accessioned2022-02-22T00:32:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:32:39Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/c9nr10601d-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201127-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201127-
Descrição: dc.descriptionOrganic diodes and molecular rectifiers are fundamental electronic devices that share one common feature: current rectification ability. Since both present distinct spatial dimensions and working principles, the rectification of organic diodes is usually achieved by interface engineering, while changes in molecular structures commonly control the molecular rectifiers' features. Here, we report on the first observation of temperature-driven inversion of the rectification direction (IRD) in ensemble molecular diodes (EMDs) prepared in a vertical stack configuration. The EMDs are composed of 20 nm thick molecular ensembles of copper phthalocyanine in close contact with one of its fluorinated derivatives. The material interface was found to be responsible for modifying the junction's conduction mechanisms from nearly activationless transport to Poole-Frenkel emission and phonon-assisted tunneling. In this context, the current rectification was found to be dependent on the interplay of such distinct charge transport mechanisms. The temperature has played a crucial role in each charge transport transition, which we have investigated via electrical measurements and band diagram analysis, thus providing the fundamentals on the IRD occurrence. Our findings represent an important step towards simple and rational control of rectification in carbon-based electronic nanodevices.-
Descrição: dc.descriptionBrazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionBrazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil and Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), 17033-360, Bauru, SP, Brazil-
Descrição: dc.descriptionBrazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas, São Paulo, Brazil and Postgraduate Program in Materials Science and Technology (POSMAT), São Paulo State University (UNESP), 17033-360, Bauru, SP, Brazil and Department of Physical Chemistry, Institute of Chemistry (IQ), UNICAMP, 13084-862, Campinas, SP, Brazil. cesar.bof@lnnano.cnpem.br-
Formato: dc.format10001-10009-
Idioma: dc.languageen-
Relação: dc.relationNanoscale-
???dc.source???: dc.sourceScopus-
Título: dc.titleRectification ratio and direction controlled by temperature in copper phthalocyanine ensemble molecular diodes-
Tipo de arquivo: dc.typelivro digital-
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