Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes

Enrico Angioni, Ross J. Marshall, Neil J. Findlay, Jochen Bruckbauer, Ben Breig, David J. Wallis, Robert W. Martin, Ross S. Forgan, Peter J. Skabara

Research output: Contribution to journalArticle

Abstract

One of the most important non-radiative relaxation processes that limits the quantum yield of a fluorophore is related to aggregation of the molecules in the solid-state causing excimer quenching. To limit this quenching mechanism, the fluorophore can be contained within a well-ordered 3D system that minimises aggregation through rigid bonds and spatial separation in a defined topological construct. Herein, the synthesis, characterisation and application as a down-converter of a new luminescent 3D material (MOF-BTBMBA) that incorporates a building block based on a benzothiadiazole (BT) derivative (BTBMBA) in a metal–organic framework (MOF) is presented. Notably, the photoluminescence quantum yield and hybrid LED performance are significantly improved for the MOF-based device compared to that prepared with the free ligand, highlighting the effectiveness of the rigid scaffold arrangement.
LanguageEnglish
Pages2394-2400
Number of pages7
JournalJournal of Materials Chemistry. C
Volume7
Issue number8
Early online date30 Jan 2019
DOIs
Publication statusPublished - 28 Feb 2019

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Light emitting diodes
Fluorophores
Metals
Quantum yield
Quenching
Agglomeration
Relaxation processes
Scaffolds
Photoluminescence
Ligands
Derivatives
Molecules
benzo-1,2,3-thiadiazole

Keywords

  • fluorophore
  • 3D system
  • down-converter

Cite this

Angioni, Enrico ; Marshall, Ross J. ; Findlay, Neil J. ; Bruckbauer, Jochen ; Breig, Ben ; Wallis, David J. ; Martin, Robert W. ; Forgan, Ross S. ; Skabara, Peter J. / Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes. In: Journal of Materials Chemistry. C . 2019 ; Vol. 7, No. 8. pp. 2394-2400.
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Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes. / Angioni, Enrico; Marshall, Ross J.; Findlay, Neil J.; Bruckbauer, Jochen; Breig, Ben; Wallis, David J.; Martin, Robert W.; Forgan, Ross S.; Skabara, Peter J.

In: Journal of Materials Chemistry. C , Vol. 7, No. 8, 28.02.2019, p. 2394-2400.

Research output: Contribution to journalArticle

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AU - Marshall, Ross J.

AU - Findlay, Neil J.

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AU - Wallis, David J.

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AU - Forgan, Ross S.

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