Organic light-emitting diodes based on charge-neutral Os(II) emitters: Generation of saturated red emission with very high external quantum efficiency
Resource
Journal of Materials Chemistry 15: 460-464
Journal
Journal of Materials Chemistry
Journal Volume
15
Journal Issue
4
Pages
460-464
Date Issued
2005
Author(s)
Tung, Y.-L.
Lee, S.-W.
Chi, Y.
Tao, Y.-T.
Chien, C.-H.
Cheng, Y.-M.
Liu, C.-S.
Abstract
The OLED device using 6% of Os(fptz)2(PPh2Me) 2 as the dopant emitter in a CBP host and BPAPF as hole transporting material shows an external quantum efficiency of 15.3% and luminous efficiency of 21.3 cd A-1, power efficiency of 6.3 lm W-1 at 20 mA cm-2. An even higher external quantum efficiency of ∼20% was achieved at a low current density of ∼1 mA cm-2.
SDGs
Other Subjects
Current density; Energy efficiency; Osmium; Quantum efficiency; Semiconducting organic compounds; Semiconductor doping; Dopants; Luminous efficiency; Organic light-emitting diodes (OLED); Power efficiency; Light emitting diodes; osmium; article; complex formation; density; light emitting diode; luminescence; power supply; quantum mechanics; reaction analysis; synthesis; transport medium
Type
journal article
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