Dibenzobarrelene-based azaacenes: emitters in organic light-emitting diodes
The synthesis of soluble dibenzobarrelene-substituted azaacenes either by condensation reactions in solution or, more effectively, in the solid state by using a ball mill is reported herein. We relate their optical properties in thin films to their packing in the solid state. The targets are charact...
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| Hauptverfasser: | , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2017
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| In: |
Chemistry - a European journal
Year: 2017, Jahrgang: 23, Heft: 18, Pages: 4415-4421 |
| ISSN: | 1521-3765 |
| DOI: | 10.1002/chem.201605820 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1002/chem.201605820 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201605820 |
| Verfasserangaben: | Michael Ganschow, Silke Koser, Sebastian Hahn, Frank Rominger, Jan Freudenberg, and Uwe H.F. Bunz |
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| 520 | |a The synthesis of soluble dibenzobarrelene-substituted azaacenes either by condensation reactions in solution or, more effectively, in the solid state by using a ball mill is reported herein. We relate their optical properties in thin films to their packing in the solid state. The targets are characterized by cyclic voltammetry, X-ray crystallography and UV/Vis and fluorescence analysis. Three highly fluorescent, amorphous azaacenes were processed into organic light-emitting diodes, and their improved performance (luminance, efficiency and efficacy) was compared with that of structurally related iptycene-based azaacenes. | ||
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