Novel Four-Pyridylbenzene-Armed Biphenyls as Electron-Transport Materials for Phosphorescent OLEDs
- 1 February 2008
- journal article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 10 (5) , 941-944
- https://doi.org/10.1021/ol7030872
Abstract
A series of four-pyridylbenzene-armed biphenyl derivatives were designed and synthesized as an electron-transport and exciton- and hole-block layer for the fac-tris(2-phenylpyridine)iridium (Ir(PPy)3)-based green phosphorescent organic light-emitting devices (OLEDs), giving improved efficiency in comparison to that with both the electron-transport layer of tris(8-hydroxyquinoline)aluminum (Alq3) and the exciton- and hole-block layer of 2,9-dimethyl-4,7-diphenylphenathroline (BCP).Keywords
This publication has 29 references indexed in Scilit:
- High-Efficiency Green Phosphorescent Organic Light-Emitting Devices with Chemically Doped LayersJapanese Journal of Applied Physics, 2007
- Ultra High Efficiency Green Organic Light-Emitting DevicesJapanese Journal of Applied Physics, 2006
- Green fluorescent organic light-emitting device with external quantum efficiency of nearly 10%Applied Physics Letters, 2006
- Management of singlet and triplet excitons for efficient white organic light-emitting devicesNature, 2006
- Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layerApplied Physics Letters, 2001
- Excitonic singlet-triplet ratio in a semiconducting organic thin filmPhysical Review B, 1999
- Very high-efficiency green organic light-emitting devices based on electrophosphorescenceApplied Physics Letters, 1999
- Fabrication of highly efficient organic electroluminescent devicesApplied Physics Letters, 1998
- Highly efficient phosphorescent emission from organic electroluminescent devicesNature, 1998
- Organic electroluminescent diodesApplied Physics Letters, 1987