White organic light-emitting devices using a phosphorescent sensitizer
Applied Physics Letters2003Vol. 82(24), pp. 4224–4226
Citations Over TimeTop 10% of 2003 papers
Abstract
The efficiency of white organic light-emitting devices has been improved dramatically by the introduction of a phosphorescent material, fac tris (2-phenylpyridine) iridium [Ir(ppy)3] as a sensitizer. Ir(ppy)3 and 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl) are codoped into 4,4′-N,N′-dicarbazole-biphenyl (CBP) host. The chromaticity of white emission can be tuned by adjusting the thickness of the codoped CBP layer or the concentration of Ir(ppy)3. The luminance efficiency of these devices is affected at the same time due to the severe difference in efficiency between the two primary emission peaks.
Related Papers
- → New phosphorescent platinum(ii) Schiff base complexes for PHOLED applications(2012)77 cited
- → Highly efficient and stable organic light-emitting diodes with a greatly reduced amount of phosphorescent emitter(2015)68 cited
- → High-efficiency blue and white phosphorescent organic light-emitting devices(2004)37 cited
- → Efficient red light phosphorescence emission in simple bi-layered structure organic devices with fluorescent host-phosphorescent guest system(2009)6 cited
- → Recent Progress in Phosphorescent Materials for Organic Light-Emitting Devices(2004)4 cited