Dye functionalized-ROMP based terpolymers for the use as a light up-converting material: Via triplet-triplet annihilation

M. Hollauf, P. W. Zach, S. M. Borisov, B. J. Müller, D. Beichel, M. Tscherner, Stefan Köstler, Paul Hartmann, A. C. Knall, G. Trimmel*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this paper we introduce and compare different terpolymers comprising covalently attached sensitizer and emitter chromophores for the use as a light up-converting material via triplet-triplet annihilation (TTA). Using the advantages of ring opening metathesis polymerisation it was possible to prepare five different polymer architectures in order to investigate the influence of polymer architecture and chromophore arrangement on the photon up-conversion behaviour. First, two new monomers containing the chromophores have been synthesized and characterized in regard to their photophysical characteristics suitable for triplet-triplet annihilation dye pair. For this purpose, a derivative of Pt(ii) meso-tetraphenyltetra(tert-butyl)benzoporphyrin as sensitizer and a perylenediester as emitter were attached to norbornene moieties via ester linkages. Polymerisations of these monomeric chromophores were performed in combination with dimethyl 5-norbornene-2,3-dicarboxylate as matrix monomer. Depending on the location of the dye molecules on the polymer chain, large differences in the TTA efficiency were observed. The best quantum yields have been achieved with a completely statistically distributed terpolymer showing an up-conversion quantum yield of up to 3% in solution.

Original languageEnglish
Pages (from-to)7535-7545
Number of pages11
JournalJournal of materials chemistry / C
Volume5
Issue number30
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

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