skip to main content

Title: Multifunctional oxides for integrated manufacturing of efficient graphene electrodes for organic electronics

Using multi-functional oxide films, we report on the development of an integration strategy for scalable manufacturing of graphene-based transparent conducting electrodes (TCEs) for organic electronics. A number of fundamental and process challenges exists for efficient graphene-based TCEs, in particular, environmentally and thermally stable doping, interfacial band engineering for efficient charge injection/extraction, effective wetting, and process compatibility including masking and patterning. Here, we show that all of these challenges can be effectively addressed at once by coating graphene with a thin (>10 nm) metal oxide (MoO{sub 3} or WO{sub 3}) layer. We demonstrate graphene electrode patterning without the need for conventional lithography and thereby achieve organic light emitting diodes with efficiencies exceeding those of standard indium tin oxide reference devices.
Authors:
; ;  [1] ; ;  [2]
  1. Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA (United Kingdom)
  2. Philips Research, Philipsstrasse 8, 52068 Aachen (Germany)
Publication Date:
OSTI Identifier:
22412626
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPATIBILITY; EFFICIENCY; ELECTRIC CONDUCTIVITY; ELECTRODES; FILMS; GRAPHENE; INDIUM COMPOUNDS; LAYERS; LIGHT EMITTING DIODES; MOLYBDENUM OXIDES; TIN OXIDES; TUNGSTATES; TUNGSTEN OXIDES