One of the key challenges in the research and development of organic light emitting diodes (OLEDs) is to achieve stable and efficient blue phosphorescent emitters. The most commonly used phosphorescent materials for OLEDs are cyclometalated Iridium(III) compounds. Thus, much of current research efforts has been focused on blue phosphorescent cyclometalated Iridium(III) compounds. Although many examples of OLEDs based on phosphorescent Platinum(II) compounds are known, their performance is often not as good as Ir(III)-based devices due to the propensity of Pt(II) compounds to produce excimer emission and undergo intermolecular quenching of the emission.  We have recently discovered that the introduction of a triarylboryl group to the chelate backbone of a Pt(II) compound may greatly enhance the phosphorescent efficiency of the molecule, leading to the achievement of highly efficient OLEDs. This presentation will focus on the role of the triarylboryl group on blue phosphorescent Pt(II) compounds and their OLEDs.

Let it glow: In search of blue phosphorescent platinum compounds

244th National Meeting (2012)

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