Novel Electrical Dopants for High Performance OLEDs

  • Leem, Dong-Seok (Department of Materials Science and Engineering and Center for OLEDs, Seoul National University) ;
  • Lee, Jae-Hyun (Department of Materials Science and Engineering and Center for OLEDs, Seoul National University) ;
  • Kim, Jang-Joo (Department of Materials Science and Engineering and Center for OLEDs, Seoul National University)
  • Published : 2008.10.13

Abstract

We have developed new electrical dopants of rhenium oxide ($ReO_3$) and cupper iodide (CuI) as p-dopants and rubidium carbonate ($Rb_2CO_3$) as an n-dopant, respectively. $ReO_3$ has advantage of low temperature evaporation (about $300^{\circ}C$) with enhanced device stability. Various kinds of high performance organic light emitting diodes have been realized, including bottom emission, tandem, and top-emission OLEDs.

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