An efficient electron-transporting polymer for light-emitting diodes
| Autor: | Ifor D. W. Samuel, E. Rebourt, M. Halim, L. E. Horsburgh, S. Dailey, Andrew P. Monkman |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Materials science business.industry Respiratory electron transport Polymer Electron Condensed Matter Physics Photochemistry law.invention chemistry law Optoelectronics General Materials Science Quantum efficiency business Layer (electronics) Diode Light-emitting diode |
| Zdroj: | Journal of Physics: Condensed Matter. 10:5171-5178 |
| ISSN: | 1361-648X 0953-8984 |
| DOI: | 10.1088/0953-8984/10/23/017 |
| Popis: | The efficient operation of polymer light-emitting diodes (LEDs) requires balanced injection and transport of electrons and holes. This has stimulated much research into suitable electron-injecting and transporting materials. We report the use of polypyridine as an efficient electron-transporting polymer. We have achieved much-improved LED performance by incorporating polypyridine as an electron-transporting layer in a poly(p-phenylene vinylene) (PPV) LED and optimizing layer thicknesses to balance transport of electrons and holes. The external quantum efficiency of these LEDs is 0.25%, 60 times greater than similar devices without the electron-transporting layer. |
| Databáze: | OpenAIRE |
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