Efficient light emitting devices based on phosphorescent partially doped emissive layers

Xiaohui Yang, Ghassan E. Jabbour

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We report efficient organic light emitting devices employing an ultrathin phosphor emissive layer. The electroluminescent spectra of these devices can be tuned by introducing a low-energy emitting phosphor layer into the emission zone. Devices with the emissive layer consisting of multiple platinum-complex/spacer layer cells show a peak external quantum efficiency of 18.1%, which is among the best EQE values for platinum-complex based light emitting devices. Devices with an ultrathin phosphor emissive layer show stronger luminance decay with the operating time compared to the counterpart devices having a host-guest emissive layer.
Original languageEnglish (US)
Pages (from-to)4663
JournalJournal of Materials Chemistry C
Volume1
Issue number31
DOIs
StatePublished - May 29 2013

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