Highly efficient phosphorescent guest-host-systems for hybrid inverted organic light-emitting diodes with sputtered indium-tin-oxide anodes

Michael Kroeger; Thomas Dobbertin; Daniel Schneider; Torsten Rabe; Eike Becker; Hans-Hermann Johannes; Wolfgang Kowalsky

doi:10.1117/12.558913

10 November 2004 Highly efficient phosphorescent guest-host systems for hybrid inverted organic light-emitting diodes with sputtered indium-tin-oxide anodes

Michael Kroeger, Thomas Dobbertin, Daniel Schneider, Torsten Rabe, Eike Becker, Hans-Hermann Johannes, Wolfgang Kowalsky

Author Affiliations +

Proceedings Volume 5519, Organic Light-Emitting Materials and Devices VIII; (2004) https://doi.org/10.1117/12.558913
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Inverted organic light-emitting diodes showing light emission from the top are discussed. Top-emitting organic light-emitting diodes are required for next-generation active-matrix organic light-emitting displays , as Si-driving circuitry has to be incorporated into the display itself. We focus on hybrid anodes, thereby giving a simple model for spin-coating of PEDOT:PSS on top of an organic layer-stack, LiF-based cathodes and phosphorescent emitters, allowing for highly efficient inverted organic light emitting diodes. A maximum current efficiency of 55.4 cd/A at 140 cd/m² and a maximum luminous efficiency of 17.2 lm/W at 50 cd/m² has been obtained.

Citation Download Citation

Michael Kroeger, Thomas Dobbertin, Daniel Schneider, Torsten Rabe, Eike Becker, Hans-Hermann Johannes, and Wolfgang Kowalsky "Highly efficient phosphorescent guest-host systems for hybrid inverted organic light-emitting diodes with sputtered indium-tin-oxide anodes", Proc. SPIE 5519, Organic Light-Emitting Materials and Devices VIII, (10 November 2004); https://doi.org/10.1117/12.558913

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