One-step additive crosslinking of conjugated polyelectrolyte interlayers: improved lifetime and performance of solution-processed OLEDs
| Autor: | Uwe H. F. Bunz, Sebastian Stolz, Martin Petzoldt, Gerardo Hernandez-Sosa, Ralph Eckstein, Tobias Rödlmeier, Manuel Hamburger, Jan Freudenberg, Naresh B. Kotadiya, Uli Lemmer, Eric Mankel |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Annealing (metallurgy) One-Step 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Solution processed Conjugated polyelectrolyte Solvent Polyfluorene chemistry.chemical_compound chemistry Chemical engineering Electrode Polymer chemistry Materials Chemistry OLED 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry C. 4:11150-11156 |
| ISSN: | 2050-7534 2050-7526 |
| DOI: | 10.1039/c6tc04417d |
| Popis: | We crosslink an amino-functionalized polyfluorene by the solvent additive 1,8-diiodooctane (DIO). DIO remains in the film after drying of the main solvent and chemically binds to the amino-side groups after a low temperature annealing step, rendering the polyfluorene film insoluble in non-polar solvents. We correlate the amount of DIO, the reduction of operational voltage and increase in lifetime of solution-processed OLEDs. We demonstrate a fully solution-processed device using the crosslinked polyfluorene electron injection layer and an inkjet-printed Ag top electrode. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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