Efficient Cyclometalated Platinum(II) Complex with Superior Operational Stability.

Zhu, Zhi-Qiang; Klimes, Kody; Holloway, Sean; Li, Jian · Adv Mater · 2017

basic_science · Level V

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Abstract

A tetradentate cyclometalated Pt(II) complex (PtN3N) is developed as an efficient, stable phosphorescent emitter. One PtN3N device exhibits an estimated LT<sub>97</sub> of 2057 h at an initial luminance of 1000 cd m<sup>-2</sup> , while maintaining an external quantum efficiency of 15.3% at such high brightness, demonstrating performance to overcome the last technical barrier to the commercialization of Pt complexes for many applications.