title: Nanoscale conjugated-polymer light-emitting diodes.
abstract: We use e-beam lithography to pattern an indium tin oxide (ITO) electrode to create arrays of conjugated-polymer LEDs, each of which has a hole-injecting contact limited to 100 nm in diameter. Using optical microscopy, we estimate that the electroluminescence from a 100 nm diameter LED comes from a region characterized by a diameter of approximately 170 nm. This apparent broadening occurs due to current spreading within a PEDOT:PSS layer which was included to aid hole injection.
authors.affiliation: Department of Physics and Astronomy, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK.
authors.forename: Farhad A
authors.initials: FA
authors.lastname: Boroumand
authors.forename: Paul W
authors.initials: PW
authors.lastname: Fry
authors.forename: David G
authors.initials: DG
authors.lastname: Lidzey