Poly(para-phenyleneethynylene)s as emitters in polymer LEDs
11 different dialkoxy- and dialkyl-poly(para-phenyleneethynylene)s (PPEs) featuring novel branched and literature described linear and branched side chains were prepared using a Sonogashira coupling. The side chains were of different length and branching character. The degree of polymerization of th...
Gespeichert in:
| Hauptverfasser: | , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 Sep 2018
|
| In: |
Journal of materials chemistry. C, Materials for optical and electronic devices
Year: 2018, Jahrgang: 6, Heft: 41, Pages: 11002-11006 |
| ISSN: | 2050-7534 |
| DOI: | 10.1039/C8TC03848A |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1039/C8TC03848A Verlag, Volltext: https://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc03848a 
|
| Verfasserangaben: | Emanuel Smarsly, Dominik Daume, Felix Braig, Silke Koser, Edgar Dörsam and Uwe H.F. Bunz |
| Zusammenfassung: | 11 different dialkoxy- and dialkyl-poly(para-phenyleneethynylene)s (PPEs) featuring novel branched and literature described linear and branched side chains were prepared using a Sonogashira coupling. The side chains were of different length and branching character. The degree of polymerization of the PPEs ranged from Pn = 44-343 with polydispersities ranging from 1.5-3.1. Fairly simple OLED-stacks with up to three layers (electron injection, emitter layer, and hole injection) were produced. Depending upon the PPEs’ structure and the stack architecture but particularly the thickness of the emitting PPE-layer, a large increase in brightness up to 2.2 × 103 cd m−2 was observed, a significant improvement over earlier reported values. |
|---|---|
| Beschreibung: | Gesehen am 13.12.2019 |
| Beschreibung: | Online Resource |
| ISSN: | 2050-7534 |
| DOI: | 10.1039/C8TC03848A |