Stable and efficient blue and green organic light emitting diodes employing tetradentate Pt(II) complexes

Guijie Li, Lydia Ameri, Tyler Fleetham, Zhi Qiang Zhu, Jian Li

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

PtON1-tBu and PtON6-tBu-doped blue organic light-emitting diodes (OLEDs) demonstrated estimated operational lifetimes LT70 of 174 and 380 h at an initial luminance of 1000 cd/cm2 with CIE coordinates of (0.188, 0.256) and (0.197, 0.309), respectively. Modifying the molecular structure of the lumiphore resulted in a PtON12-tBu-based green OLED, which realized an estimated operational lifetime LT70 of 1410 h at an initial luminance of 1000 cd/cm2 with CIE coordinates of (0.281, 0.559). These studies demonstrate that the tetradentate Pt(II) complexes bearing phenyl-pyrazole or benzopyrazole can act as stable phosphorescent emitters for the development of efficient and stable blue and green OLEDs.

Original languageEnglish (US)
Article number253301
JournalApplied Physics Letters
Volume117
Issue number25
DOIs
StatePublished - Dec 21 2020

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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