High efficient white organic light-emitting diodes with single emissive layer using phosphorescent red, green, and blue dopants

You Hyun Kim, Kok Wai CHEAH, Woo Young Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Phosphorescent white organic light-emitting diodes (PHWOLEDs) with single emissive layer were fabricated by co-doping phosphorescent blue, green, and red emitters with different concentrations. WOLEDs using Ir(piq)3 and Ir(ppy)3 as red and green dopants along with 8% of Firpic as blue dopant with host materials of 4CzPBP in the emissive layer were compared under various doping ratio between Ir(piq)3 and Ir(ppy)3. Triplet-triplet Dexter energy transfer in single emissive PHWOLEDs including three primary colors was saturated from higher triplet energy levels to lower triplet energy levels directly.

Original languageEnglish
Article number053307
JournalApplied Physics Letters
Volume103
Issue number5
DOIs
Publication statusPublished - 29 Jul 2013

Scopus Subject Areas

  • Physics and Astronomy (miscellaneous)

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