In:
Molecules, MDPI AG, Vol. 28, No. 12 ( 2023-06-20), p. 4865-
Abstract:
Two novel neutral phosphorescent iridium(III) complexes (Ir1 and Ir2) were rationally designed and synthesized with high yields using 10,11,12,13-tetrahydrodibenzo[a,c]phenazine as the main ligand. The two complexes showed bright-red phosphorescence (625 nm for Ir1, and 620 nm for Ir2, in CH2Cl2), high-luminescence quantum efficiency (0.32 for Ir1, and 0.35 for Ir2), obvious solvatochromism and good thermostability. Then, they were used to fabricate high-efficiency red OLEDs via vacuum evaporation; the maximum current efficiency, power efficiency, and external quantum efficiency of the red devices based on Ir1 and Ir2 are 13.47/15.22 cd/A, 10.35/12.26 lm/W, and 10.08/7.48%, respectively.
Type of Medium:
Online Resource
ISSN:
1420-3049
DOI:
10.3390/molecules28124865
Language:
English
Publisher:
MDPI AG
Publication Date:
2023
detail.hit.zdb_id:
2008644-1
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