Multicolor oligothiophene-based light-emitting diodes
- 8 March 2001
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (11) , 1493-1495
- https://doi.org/10.1063/1.1355991
Abstract
We demonstrate wide tunability, from green to near infrared, of the electroluminescence emission of substituted oligothiophene compounds. The compounds are characterized by high chemical stability, electron affinities up to 3.1 eV and photoluminescence efficiencies up to 70%. These characteristics make these materials excellent candidates for application in light-emitting diodes. We obtain low turn-on voltage devices with electroluminescence efficiency up to 0.2%, more than one order of magnitude larger than the values reported for unsubstituted oligothiophene compounds.Keywords
This publication has 14 references indexed in Scilit:
- Tuning Solid-State Photoluminescence Frequencies and Efficiencies of Oligomers Containing One Central Thiophene-S,S-dioxide UnitJournal of the American Chemical Society, 2000
- Color engineering by modified oligothiophene blendsApplied Physics Letters, 2000
- Molecular Packing and Photoluminescence Efficiency in Odd-Membered Oligothiophene S,S-DioxidesJournal of the American Chemical Society, 2000
- Polymer diodes with high rectificationApplied Physics Letters, 1999
- Two-dimensional charge transport in self-organized, high-mobility conjugated polymersNature, 1999
- Controlling the Electronic Properties of Polythiophene through the Insertion of Nonaromatic Thienyl S,S-dioxide UnitsChemistry of Materials, 1999
- High-efficiency oligothiopene-based light-emitting diodesApplied Physics Letters, 1999
- Oligothiophene S,S-Dioxides. Synthesis and Electronic Properties in Relation to the Parent OligothiophenesThe Journal of Organic Chemistry, 1998
- Influence of Interchain Interactions on the Absorption and Luminescence of Conjugated Oligomers and Polymers: A Quantum-Chemical CharacterizationJournal of the American Chemical Society, 1998
- Light-emitting diodes with variable colours from polymer blendsNature, 1994