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26‐3: Invited Paper: High Performance and Long Device Lifetime Organic Light‐emitting Diodes Using a Tetradentate Platinum (II) Emitter
Author(s) -
Li Huiyang,
Lam Tsz-Lung,
Tan Xiaofeng,
Dai Lei,
Che Chi-Ming
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14682
Subject(s) - common emitter , oled , platinum , optoelectronics , diode , materials science , luminance , doping , current density , cathode , chemistry , optics , nanotechnology , physics , catalysis , layer (electronics) , quantum mechanics , biochemistry
The realization of high performance green organic light emitting diodes with long device lifetime using a platinum emitter is demonstrated in this work. The platinum emitter shows a short emission lifetime of 2.7 μs in thin film and a high T d of 489 °C. The Pt OLED with 9 wt% doping concentration exhibited an EQE of up to 20.4% and a current efficiency of up to 70.6 cd A −1 at a current density (luminance) of 20 mA cm −2 (14110 cd m −2 ), respectively. Notably, a respectable device lifetime (LT 95 ) of 373 h at 10000 cd m −2 has been achieved, and this value is comparable to the reference Ir complex.