Show simple item record

dc.contributor.authorBLAU, WERNER
dc.contributor.authorCOLEMAN, JONATHAN NESBIT
dc.contributor.authorDRURY, ANNA
dc.date.accessioned2009-03-19T14:56:48Z
dc.date.available2009-03-19T14:56:48Z
dc.date.issued2004
dc.date.submitted2004en
dc.identifier.citationLipson S.M., Coleman J.N., Drury A., O'Brien D.F., Blau W.J., Cadby A.J., Lane P.A. and Bradley D.D.C. `Alternating and direct current characterization and photoinduced absorption studies of modified conjugated polymer thin films? in Journal of Applied Physics, 95, (11), 2004, pp 6138 - 6144en
dc.identifier.issn0021-8979
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/28386
dc.descriptionPUBLISHEDen
dc.description.abstractControl of interchain separation enables the optical properties of polymer thin films to be altered. We present a thin film preparation technique that increases the free volume fraction in spin coated polymer thin films resulting in reduced interchain interaction. The polaron yield, measured using photoinduced absorption, was significantly reduced as a direct result of the increased interchain separation, leading to a higher value for the measured photoluminescence efficiency. Impedance spectroscopy showed an increase in permittivity, probably due to greater polarizability. Increases approaching one order of magnitude were observed for direct current hole conductivity and mobility values. Space charge limited conduction analysis suggests a narrowing of the highest occupied molecular orbital band tail on treatment resulting in reduced trapping. Single layer light emitting devices prepared using this technique were found to be significantly brighter and to have longer operating lifetimes.en
dc.description.sponsorshipThe authors wish to acknowledge the financial support of the Irish Higher Education Authority and the COST 518 project.en
dc.format.extent6138en
dc.format.extent6144en
dc.format.extent226335 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherJournal of Applied Physicsen
dc.relation.ispartofseriesJournal of Applied Physicsen
dc.relation.ispartofseries95en
dc.relation.ispartofseries11en
dc.rightsYen
dc.subjectPhysicsen
dc.titleAlternating and direct current characterization and photoinduced absorption studies of modified conjugated polymer thin filmsen
dc.typeJournal Articleen
dc.contributor.sponsorHigher Education Authority
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/wblau
dc.identifier.rssurihttp://dx.doi.org/10.1063/1.1719261


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record