Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confining device structure
- 14 May 2007
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (20) , 203511
- https://doi.org/10.1063/1.2740587
Abstract
Lifetime improvement of green phosphorescent organic light-emitting diodes by charge confinement inside an emitting layer was investigated. Excitons were confined within the emitting layer by using a charge confining structure with a high doping concentration at the center of the emitting layer. The lifetime of green devices could be improved by more than five times by confining the excitons at the center of the emitting layer.Keywords
This publication has 9 references indexed in Scilit:
- Effect of doping profile on the lifetime of green phosphorescent organic light-emitting diodesApplied Physics Letters, 2006
- Hole-injecting conducting-polymer compositions for highly efficient and stable organic light-emitting diodesApplied Physics Letters, 2005
- 22.2: Novel Triplet Host Materials: High Performance Made EasySID Symposium Digest of Technical Papers, 2005
- Current status of electrophosphorescent device stabilityOrganic Electronics, 2003
- A Novel Family of Boron‐Containing Hole‐Blocking Amorphous Molecular Materials for Blue‐ and Blue–Violet‐Emitting Organic Electroluminescent DevicesAdvanced Functional Materials, 2002
- High operational stability of electrophosphorescent devicesApplied Physics Letters, 2002
- Nearly 100% internal phosphorescence efficiency in an organic light-emitting deviceJournal of Applied Physics, 2001
- Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layerApplied Physics Letters, 2001
- Degradation Mechanism of Small Molecule-Based Organic Light-Emitting DevicesScience, 1999