Effect of the position of nitrogen in pyridoindole on photophysical properties and device performances of α-, β-, γ-carboline based high triplet energy host materials for deep blue devices
Authors:
- 28 May 2013
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- Vol. 49 (53) , 5948-5950
Abstract
Three carboline derivatives with nitrogen at different positions of the pyridoindole unit were synthesized and the effect of the position of nitrogen on the photophysical properties and device performances was investigated. β-Carboline was effective in obtaining high triplet energy and stabilizing energy levels, while α-carboline was better than other carbolines in terms of quantum efficiency. However, γ-carboline could not stabilize the LUMO level and low quantum efficiency was obtained.Keywords
This publication has 13 references indexed in Scilit:
- Highly efficient organic light-emitting diodes from delayed fluorescenceNature, 2012
- An α-Carboline-containing Host Material for High-efficiency Blue and Green Phosphorescent OLEDsChemistry Letters, 2011
- External Quantum Efficiency Above 20% in Deep Blue Phosphorescent Organic Light‐Emitting DiodesAdvanced Materials, 2011
- Synthesis and Application of Pyridine-Based Ambipolar Hosts: Control of Charge Balance in Organic Light-Emitting Devices by Chemical Structure ModificationOrganic Letters, 2010
- Multifunctional Triphenylamine/Oxadiazole Hybrid as Host and Exciton‐Blocking Material: High Efficiency Green Phosphorescent OLEDs Using Easily Available and Common MaterialsAdvanced Functional Materials, 2010
- Pyridoindole Derivative as Electron Transporting Host Material for Efficient Deep‐blue Phosphorescent Organic Light‐emitting DiodesAdvanced Materials, 2010
- Design of star-shaped molecular architectures based on carbazole and phosphine oxide moieties: towards amorphous bipolar hosts with high triplet energy for efficient blue electrophosphorescent devicesJournal of Materials Chemistry, 2010
- One-Pot Synthesis of α-Carbolines via Sequential Palladium-Catalyzed Aryl Amination and Intramolecular ArylationThe Journal of Organic Chemistry, 2009
- Benzimidazole/Amine‐Based Compounds Capable of Ambipolar Transport for Application in Single‐Layer Blue‐Emitting OLEDs and as Hosts for Phosphorescent EmittersAngewandte Chemie International Edition, 2007
- Blue organic electrophosphorescence using exothermic host–guest energy transferApplied Physics Letters, 2003