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dc.contributor.authorWyatt-Moon, Gwenhivir
dc.contributor.authorGeorgiadou, Dimitra G
dc.contributor.authorZoladek-Lemanczyk, Alina
dc.contributor.authorCastro, Fernando A
dc.contributor.authorAnthopoulos, Thomas D
dc.date.accessioned2018-09-26T13:29:49Z
dc.date.available2018-09-26T13:29:49Z
dc.date.issued2018-09-18
dc.identifier.citationWyatt-Moon G, Georgiadou DG, Zoladek-Lemanczyk A, Castro FA, Anthopoulos TD (2018) Flexible nanogap polymer light-emitting diodes fabricated via adhesion lithography (a-Lith). Journal of Physics: Materials 1: 01LT01. Available: http://dx.doi.org/10.1088/2515-7639/aadd57.
dc.identifier.issn2515-7639
dc.identifier.doi10.1088/2515-7639/aadd57
dc.identifier.urihttp://hdl.handle.net/10754/628792
dc.description.abstractWe report the development of coplanar green colour organic light-emitting diodes (OLEDs) based on asymmetric nanogap electrodes fabricated on different substrates including glass and plastic. Using adhesion lithography (a-Lith) we pattern Al and Au layers acting as the cathode and anode electrodes, respectively, separated by an inter-electrode distance of <15 nm with an aspect ratio of up to 106. Spin-coating the organic light-emitting polymer poly(9,9-dioctylfluorene-alt-bithiophene) (F8T2) on top of the asymmetric Al–Au nanogap electrodes results in green light-emitting nanogap OLEDs with promising operating characteristics. We show that the scaling of the OLED's width from 4 to 200 mm can substantially improve the light output of the device without any adverse effects on the manufacturing yield. Furthermore, it is found that the light-emitting properties in the nanogap area differ from the bulk organic film, an effect attributed to confinement of the conjugated polymer chains in the nanogap channel. These results render a-Lith particularly attractive for low cost facile fabrication of nanoscale light-emitting sources and arrays on different substrates of arbitrary size.
dc.description.sponsorshipThis work was supported by the European Union's Horizon 2020 research and innovation programme (under the Marie Skłodowska-Curie grant agreement 706707) and the Engineering and Physical Sciences Research Council (EPSRC) grant no. EP/G037515/1.
dc.publisherIOP Publishing
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/2515-7639/aadd57/meta
dc.rightsOriginal content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
dc.rights.urihttp://creativecommons.org/licenses/by/3.0
dc.titleFlexible nanogap polymer light-emitting diodes fabricated via adhesion lithography (a-Lith)
dc.typeArticle
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
dc.identifier.journalJournal of Physics: Materials
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionPhysics Department & Centre for Plastic Electronics, Blackett Laboratory, Imperial College London, Exhibition Road, South Kensington, London SW7 2BW, United Kingdom
dc.contributor.institutionNational Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom
kaust.personAnthopoulos, Thomas D.
refterms.dateFOA2018-09-26T13:56:47Z


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Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Except where otherwise noted, this item's license is described as Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.