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

4 Citations (Scopus)
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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.
Original languageEnglish
Pages (from-to)2394-2400
Number of pages7
JournalJournal of Materials Chemistry. C
Volume7
Issue number8
Early online date30 Jan 2019
DOIs
Publication statusPublished - 28 Feb 2019

Keywords

  • fluorophore
  • 3D system
  • down-converter

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