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Poly(para-phenyleneethynylene)s as Emitters in Polymer LEDs

Abstract

11 different dialkoxy- and dialkyl-poly(para-phenyleneethynylene)s (PPE) featuring novel branched and literature de-scribed linear and branched side chains were prepared using a Sonogashira coupling. The side chains were of different length and branching character. Degree of polymerization of the PPEs ranged from Pn = 44-343 with polydispersities rang-ing 1.5-3.1. Fairly simple OLED-stacks with up to three layers (electron injection, emitter layer, hole injection) were pro-duced. Depending upon the PPEs’ structure, stack architecture but particularly the thickness of the emitting PPE-layer, a large increase in brightness up to 2.2 x 103 Cd/m2 was observed, a significant improvement over earlier reported values.

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Publication details

The article was received on 02 Aug 2018, accepted on 07 Sep 2018 and first published on 10 Sep 2018


Article type: Paper
DOI: 10.1039/C8TC03848A
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Poly(para-phenyleneethynylene)s as Emitters in Polymer LEDs

    E. Smarsly, D. Daume, F. Braig, S. Koser, E. Dörsam and U. H. F. Bunz, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC03848A

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