Organic light-emitting diodes having exclusive near-infrared electrophosphorescence
- 21 August 2006
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (8)
- https://doi.org/10.1063/1.2335275
Abstract
Near-infrared (NIR) emission is demonstrated from phosphorescent organic light-emitting diodes containing blends of polymeric host and heavy metal complex, iridium(III) bis(1-pyrenyl-isoquinolinato-N,C′) acetylacetonate. The devices exhibit exclusive NIR emission with a peak value at 720nm. Forward light output exceeds 100μW∕cm2, and the external quantum efficiency is nearly 0.1%. These values are shown to increase upon using a hole blocking layer in the device architecture.Keywords
This publication has 29 references indexed in Scilit:
- Deep-Red Electroluminescent Polymers: Synthesis and Characterization of New Low-Band-Gap Conjugated Copolymers for Light-Emitting Diodes and Photovoltaic DevicesMacromolecules, 2004
- Observation of 1.5μm photoluminescence and electroluminescence from a holmium organic complexApplied Physics Letters, 2004
- Efficient Near-Infrared Polymer Nanocrystal Light-Emitting DiodesScience, 2002
- Near-infrared electroluminescence from conjugated polymer/lanthanide porphyrin blendsApplied Physics Letters, 2001
- Infrared and visible emission from organic electroluminescent devices based on praseodymium complexApplied Physics Letters, 2001
- Near-Infrared Photoluminescence and Electroluminescence of Neodymium(III), Erbium(III), and Ytterbium(III) ComplexesJapanese Journal of Applied Physics, 2001
- Silicon-based organic light-emitting diode operating at a wavelength of 1.5 μmApplied Physics Letters, 2000
- Highly efficient and bright organic electroluminescent devices with an aluminum cathodeApplied Physics Letters, 1997
- Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrodeApplied Physics Letters, 1997
- Light-emitting diodes based on conjugated polymersNature, 1990