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dc.contributor.authorBLAU, WERNER
dc.date.accessioned2013-07-24T08:28:23Z
dc.date.available2013-07-24T08:28:23Z
dc.date.issued2000
dc.date.submitted2000en
dc.identifier.citationWoo, H.S., Czerw, R., Webster, S., Carroll, D.L., Ballato, J., Strevens, A.E., O'Brien, D., Blau, W.J., Hole blocking in carbon nanotube-polymer composite organic light-emitting diodes based on poly (m-phenylene vinylene-co-2, 5-dioctoxy-p-phenylene vinylene), Applied Physics Letters, 77, 9, 2000, 1393-1395en
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/66753
dc.descriptionPUBLISHEDen
dc.description.abstractIn order to investigate the role of carbon nanotubes in a polymer matrix, organic light-emitting diodes were fabricated from a polymer composite composed of poly ~ m -phenylene vinylene-co-2,5-dioctoxy- p -phenylene !~ PmPV ! and dispersed single-wall carbon nanotubes ~ SWNTs ! . Tris- ~ 8-hydroxyquinolinolato ! aluminum (Alq 3 ) doped by Nile Red was used as an emissive material between the polymer composite and cathode. The device fabricated without SWNTs dispersed in the PmPV shows a dominant emission near red at 600 nm, which is in the range of the characteristic emission of Nile Red-doped Alq 3 , with a small amount of green emission from the PmPV. However, the devices fabricated with the polymer composite show an increase in the oscillator strength of the green emission with a dominant emission peak near 500 nm, the characteristic emission of PmPV. This was observed for SWNT concentrations up to 0.1 wt %. The shift in the emission indicates that the SWNTs in the PmPV matrix act as a hole-blocking material that results in a shifting of the recombination region from the Nile Red-doped Alq 3 layer to the PmPV composite layer.en
dc.description.sponsorshipThe authors gratefully acknowledge funding from AFOSR, DURIP, and the state of South Carolina. The au- thors also acknowledge the support of J. T. Morrison of Bayer for supplying the PEDOT:PSS and P. M. Ajayan for the use of his arc-discharge equipmenten
dc.format.extent1393-1395en
dc.language.isoenen
dc.relation.ispartofseriesApplied Physics Letters;
dc.relation.ispartofseries77;
dc.relation.ispartofseries9;
dc.rightsYen
dc.subjectSWNTen
dc.subject.lcshSWNTen
dc.titleHole blocking in carbon nanotube-polymer composite organic light-emitting diodes based on poly (m-phenylene vinylene-co-2, 5-dioctoxy-p-phenylene vinylene)en
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/wblau
dc.identifier.rssinternalid85835


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