Mechanism Studies on the Chemical Stability of FIrpic, a Typical Blue Phosphorescent Emitter for Electroluminescence, in the Redox States

Iridium(III)bis[2-(4,6-difluorophenyl)pyridyl-N,C<sup>2′</sup>]picolinate (FIrpic) is a widely used light-blue phosphorescent material known for its favorable redox activity. However, the operational lifetime of FIrpic-based phosphorescent organic light-emitting diodes (PhOLEDs) remains...

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Main Author:	Weiqiang Wei (19728558) (author)
Other Authors:	Luyan Huang (19728561) (author), Zihan Wang (3129810) (author), Ya Xu (612017) (author), Zhou Fang (209353) (author), Yan He (116705) (author), Lisheng Zhang (268010) (author), Huifang Li (171707) (author)
Published:	2024
Subjects:	Biophysics Biochemistry Biotechnology Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Physical Sciences not elsewhere classified widely used light density functional theory charge analysis indicates 2 -( 4 favorable redox activity different redox conditions n – ir ir – n various redox states redox states iridium bond breakage leads 1 </ sub 0 </ sub electron acceptor nbo chemical degradation process n </ sub redox states degradation process chemical stability electron reduced electron oxidized degradation mechanisms >< sub *< sub )</ sub static calculations stable materials remains unsatisfactory operational lifetime nonemissive five mechanism studies findings provide emitting diodes electronic delocalization deeper insight decreasing trend 700 k
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Mechanism Studies on the Chemical Stability of FIrpic, a Typical Blue Phosphorescent Emitter for Electroluminescence, in the Redox States

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