• 文献标题:   Organic Light-Emitting Diodes on Solution-Processed Graphene Transparent Electrodes
  • 文献类型:   Article
  • 作  者:   WU JB, AGRAWAL M, BECERRIL HA, BAO ZN, LIU ZF, CHEN YS, PEUMANS P
  • 作者关键词:   graphene, oled, transparent conductor, outcoupling, solutionprocessed
  • 出版物名称:   ACS NANO
  • ISSN:   1936-0851 EI 1936-086X
  • 通讯作者地址:   Stanford Univ
  • 被引频次:   677
  • DOI:   10.1021/nn900728d
  • 出版年:   2010

▎ 摘  要

Theoretical estimates indicate that graphene thin films can be used as transparent electrodes for thin-film devices such as solar cells and organic light-emitting diodes, with an unmatched combination of sheet resistance and transparency, We demonstrate organic light-emitting diodes with solution-processed graphene thin film transparent conductive anodes. The graphene electrodes were deposited on quartz substrates by spin-coating of an aqueous dispersion of functionalized graphene, followed by a vacuum anneal step to reduce the sheet resistance. Small molecular weight organic materials and a metal cathode were directly deposited on the graphene anodes, resulting in devices with a performance comparable to control devices on indium-tin-oxide transparent anodes. The outcoupling efficiency of devices on graphene and indium-tin-oxide is nearly identical, in agreement with model predictions.