Carbazole-based electroluminescent devices obtained by vacuum evaporation

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dc.contributor.authorD'Almeida, K
dc.contributor.authorBernède, JC
dc.contributor.authorRagot, F
dc.contributor.authorGodoy, A
dc.contributor.authorDiaz, FR
dc.contributor.authorLefrant, S
dc.date.accessioned2025-01-21T01:30:38Z
dc.date.available2025-01-21T01:30:38Z
dc.date.issued2001
dc.description.abstractTransparent conductive oxide (SnO2)/organic layers/aluminum thin film sandwich structures were obtained by vacuum evaporation. The organic component was either a thin carbazole film or a bilayer. In that case, the carbazole film was deposited onto a thin insulating polymer film. The polymer used was the poly(tetrabromo-p-phenyleneselenide) (PBrPDSe). Photoluminescence measurements have shown that the carbazole thin films emit blue light. (I-V) measurements have shown that the structures exhibit diode characteristics. The forward direction is obtained when the transparent conductive oxide (TCO) is positively biased. However, the reproducibility of the results obtained with a single carbazole layer is poor. It appears that the stability of the sample is improved when a thin PBrPDSe film (40 nm) is introduced between the carbazole and the SnO2. The polymer film avoids the short circuit effect. In that case, the turn-on voltage of the diode is about 3 V, when the thickness of the carbazole film is around 250 nm and the electroluminescence appears at a voltage of about 5 V. It is shown that the thermionic effect cannot be used to explain the I-V characteristics, which are interpreted with the help of the Fowler-Nordheim tunnel effect. (C) 2001 John Wiley & Sons, Inc.
dc.fuente.origenWOS
dc.identifier.eissn1097-4628
dc.identifier.issn0021-8995
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96837
dc.identifier.wosidWOS:000171187500026
dc.issue.numero8
dc.language.isoen
dc.pagina.final2055
dc.pagina.inicio2042
dc.revistaJournal of applied polymer science
dc.rightsacceso restringido
dc.subjectorganic light emitting diodes
dc.subjectevaporated thin films
dc.subjectcarbazole
dc.subjectpoly(tetrabromo-p-phenyleneselenide)
dc.subjectluminescence
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titleCarbazole-based electroluminescent devices obtained by vacuum evaporation
dc.typeartículo
dc.volumen82
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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