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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...

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Bibliographic Details
Main Authors: Smarsly, Emanuel (Author) , Daume, Dominik (Author) , Braig, Felix (Author) , Koser, Silke (Author) , Dörsam, Edgar (Author) , Bunz, Uwe H. F. (Author)
Format: Article (Journal)
Language:English
Published: 10 Sep 2018
In: Journal of materials chemistry. C, Materials for optical and electronic devices
Year: 2018, Volume: 6, Issue: 41, Pages: 11002-11006
ISSN:2050-7534
DOI:10.1039/C8TC03848A
Online Access:Verlag, Volltext: http://dx.doi.org/10.1039/C8TC03848A
Verlag, Volltext: https://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc03848a
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Author Notes:Emanuel Smarsly, Dominik Daume, Felix Braig, Silke Koser, Edgar Dörsam and Uwe H.F. Bunz
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Summary: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.
Item Description:Gesehen am 13.12.2019
Physical Description:Online Resource
ISSN:2050-7534
DOI:10.1039/C8TC03848A

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