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Poly(para-phenyleneethynylene)s as emtters in polymer LEDs

Smarsly, Emanuel and Daume, Dominik and Braig, Felix and Koser, Silke and Dörsam, Edgar and Bunz, Uwe H. F. (2018):
Poly(para-phenyleneethynylene)s as emtters in polymer LEDs.
6, In: Journal of Materials Chemistry C, (41), The Royal Society of Cemistry, pp. 11002-11006, ISSN 2050-7534, DOI: 10.1039/C8TC03848A,
[Online-Edition: http://www.rsc.org/journals-books-databases/about-journals/j...],
[Article]

Abstract

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 Type: Article
Erschienen: 2018
Creators: Smarsly, Emanuel and Daume, Dominik and Braig, Felix and Koser, Silke and Dörsam, Edgar and Bunz, Uwe H. F.
Title: Poly(para-phenyleneethynylene)s as emtters in polymer LEDs
Language: English
Abstract:

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.

Journal or Publication Title: Journal of Materials Chemistry C
Volume: 6
Number: 41
Publisher: The Royal Society of Cemistry
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Printing Science and Technology (IDD)
Date Deposited: 05 Nov 2018 15:17
DOI: 10.1039/C8TC03848A
Official URL: http://www.rsc.org/journals-books-databases/about-journals/j...
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